Finding the Fourth Proportional to 2,557.46, 3,838.35 and 1,404.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557.46 : 3,838.35 = 1,404.02 : x
2. Step 2: Convert to fraction form
   2,557.46/3,838.35 = 1,404.02/x
3. Step 3: Cross multiply
   2,557.46x = 3,838.35 × 1,404.02
4. Step 4: Simplify right side
   2,557.46x = 5,389,120.17
5. Step 5: Solve for x
   x = 5,389,120.17/2,557.46
6. Step 6: Final answer
   x = 2,107.22