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Finding the Fourth Proportional to 1,947.00, 2,918.87 and 850.53

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Solution

The fourth proportional to 1,947.00, 2,918.87 and 850.53 is: 1,275.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947.00 : 2,918.87 = 850.53 : x
  2. Step 2: Convert to fraction form
    1,947.00/2,918.87 = 850.53/x
  3. Step 3: Cross multiply
    1,947.00x = 2,918.87 × 850.53
  4. Step 4: Simplify right side
    1,947.00x = 2,482,596.38
  5. Step 5: Solve for x
    x = 2,482,596.38/1,947.00
  6. Step 6: Final answer
    x = 1,275.09

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