Finding the Fourth Proportional to 2,572.81, 3,852.25 and 1,397.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.81 : 3,852.25 = 1,397.30 : x
2. Step 2: Convert to fraction form
   2,572.81/3,852.25 = 1,397.30/x
3. Step 3: Cross multiply
   2,572.81x = 3,852.25 × 1,397.30
4. Step 4: Simplify right side
   2,572.81x = 5,382,726.17
5. Step 5: Solve for x
   x = 5,382,726.17/2,572.81
6. Step 6: Final answer
   x = 2,092.16