Finding the Fourth Proportional to 2,572.23, 3,549.67 and 1,393.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.23 : 3,549.67 = 1,393.30 : x
2. Step 2: Convert to fraction form
   2,572.23/3,549.67 = 1,393.30/x
3. Step 3: Cross multiply
   2,572.23x = 3,549.67 × 1,393.30
4. Step 4: Simplify right side
   2,572.23x = 4,945,755.21
5. Step 5: Solve for x
   x = 4,945,755.21/2,572.23
6. Step 6: Final answer
   x = 1,922.75