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Finding the Fourth Proportional to 1,773.93, 2,660.09 and 1,286.31

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Solution

The fourth proportional to 1,773.93, 2,660.09 and 1,286.31 is: 1,928.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,773.93 : 2,660.09 = 1,286.31 : x
  2. Step 2: Convert to fraction form
    1,773.93/2,660.09 = 1,286.31/x
  3. Step 3: Cross multiply
    1,773.93x = 2,660.09 × 1,286.31
  4. Step 4: Simplify right side
    1,773.93x = 3,421,693.94
  5. Step 5: Solve for x
    x = 3,421,693.94/1,773.93
  6. Step 6: Final answer
    x = 1,928.88

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