Finding the Fourth Proportional to 2,572.05, 3,549.43 and 1,393.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.05 : 3,549.43 = 1,393.12 : x
2. Step 2: Convert to fraction form
   2,572.05/3,549.43 = 1,393.12/x
3. Step 3: Cross multiply
   2,572.05x = 3,549.43 × 1,393.12
4. Step 4: Simplify right side
   2,572.05x = 4,944,764.17
5. Step 5: Solve for x
   x = 4,944,764.17/2,572.05
6. Step 6: Final answer
   x = 1,922.50