Finding the Fourth Proportional to 1,437.57, 1,984.16 and 913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.57 : 1,984.16 = 913.50 : x
2. Step 2: Convert to fraction form
   1,437.57/1,984.16 = 913.50/x
3. Step 3: Cross multiply
   1,437.57x = 1,984.16 × 913.50
4. Step 4: Simplify right side
   1,437.57x = 1,812,532.44
5. Step 5: Solve for x
   x = 1,812,532.44/1,437.57
6. Step 6: Final answer
   x = 1,260.83