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Finding the Fourth Proportional to 1,306.16, 1,958 and 484.22

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Solution

The fourth proportional to 1,306.16, 1,958 and 484.22 is: 725.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,306.16 : 1,958 = 484.22 : x
  2. Step 2: Convert to fraction form
    1,306.16/1,958 = 484.22/x
  3. Step 3: Cross multiply
    1,306.16x = 1,958 × 484.22
  4. Step 4: Simplify right side
    1,306.16x = 948,102.76
  5. Step 5: Solve for x
    x = 948,102.76/1,306.16
  6. Step 6: Final answer
    x = 725.87

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