Finding the Fourth Proportional to 1,552.38, 2,326.29 and 1,139.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,552.38 : 2,326.29 = 1,139.61 : x
2. Step 2: Convert to fraction form
   1,552.38/2,326.29 = 1,139.61/x
3. Step 3: Cross multiply
   1,552.38x = 2,326.29 × 1,139.61
4. Step 4: Simplify right side
   1,552.38x = 2,651,063.35
5. Step 5: Solve for x
   x = 2,651,063.35/1,552.38
6. Step 6: Final answer
   x = 1,707.74