Finding the Fourth Proportional to 2,572.35, 3,549.84 and 1,393.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.35 : 3,549.84 = 1,393.43 : x
2. Step 2: Convert to fraction form
   2,572.35/3,549.84 = 1,393.43/x
3. Step 3: Cross multiply
   2,572.35x = 3,549.84 × 1,393.43
4. Step 4: Simplify right side
   2,572.35x = 4,946,428.83
5. Step 5: Solve for x
   x = 4,946,428.83/2,572.35
6. Step 6: Final answer
   x = 1,922.92