Finding the Fourth Proportional to 3,557.71, 5,337.36 and 1,092.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,557.71 : 5,337.36 = 1,092.78 : x
2. Step 2: Convert to fraction form
   3,557.71/5,337.36 = 1,092.78/x
3. Step 3: Cross multiply
   3,557.71x = 5,337.36 × 1,092.78
4. Step 4: Simplify right side
   3,557.71x = 5,832,576.34
5. Step 5: Solve for x
   x = 5,832,576.34/3,557.71
6. Step 6: Final answer
   x = 1,639.42