Finding the Fourth Proportional to 2,553.01, 3,522.15 and 1,557.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553.01 : 3,522.15 = 1,557.92 : x
2. Step 2: Convert to fraction form
   2,553.01/3,522.15 = 1,557.92/x
3. Step 3: Cross multiply
   2,553.01x = 3,522.15 × 1,557.92
4. Step 4: Simplify right side
   2,553.01x = 5,487,236.73
5. Step 5: Solve for x
   x = 5,487,236.73/2,553.01
6. Step 6: Final answer
   x = 2,149.32