Finding the Fourth Proportional to 2,572.08, 3,549.47 and 1,393.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.08 : 3,549.47 = 1,393.15 : x
2. Step 2: Convert to fraction form
   2,572.08/3,549.47 = 1,393.15/x
3. Step 3: Cross multiply
   2,572.08x = 3,549.47 × 1,393.15
4. Step 4: Simplify right side
   2,572.08x = 4,944,942.78
5. Step 5: Solve for x
   x = 4,944,942.78/2,572.08
6. Step 6: Final answer
   x = 1,922.55