Finding the Fourth Proportional to 1,337.43, 1,842.87 and 1,137.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.43 : 1,842.87 = 1,137.57 : x
2. Step 2: Convert to fraction form
   1,337.43/1,842.87 = 1,137.57/x
3. Step 3: Cross multiply
   1,337.43x = 1,842.87 × 1,137.57
4. Step 4: Simplify right side
   1,337.43x = 2,096,393.63
5. Step 5: Solve for x
   x = 2,096,393.63/1,337.43
6. Step 6: Final answer
   x = 1,567.48