Finding the Fourth Proportional to 1,310.57, 1,806.71 and 937.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,310.57 : 1,806.71 = 937.41 : x
2. Step 2: Convert to fraction form
   1,310.57/1,806.71 = 937.41/x
3. Step 3: Cross multiply
   1,310.57x = 1,806.71 × 937.41
4. Step 4: Simplify right side
   1,310.57x = 1,693,628.02
5. Step 5: Solve for x
   x = 1,693,628.02/1,310.57
6. Step 6: Final answer
   x = 1,292.28