Finding the Fourth Proportional to 1,870.52, 2,581.32 and 1,042.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.52 : 2,581.32 = 1,042.52 : x
2. Step 2: Convert to fraction form
   1,870.52/2,581.32 = 1,042.52/x
3. Step 3: Cross multiply
   1,870.52x = 2,581.32 × 1,042.52
4. Step 4: Simplify right side
   1,870.52x = 2,691,077.73
5. Step 5: Solve for x
   x = 2,691,077.73/1,870.52
6. Step 6: Final answer
   x = 1,438.68