Finding the Fourth Proportional to 1,788.86, 2,468.39 and 1,042.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.86 : 2,468.39 = 1,042.71 : x
2. Step 2: Convert to fraction form
   1,788.86/2,468.39 = 1,042.71/x
3. Step 3: Cross multiply
   1,788.86x = 2,468.39 × 1,042.71
4. Step 4: Simplify right side
   1,788.86x = 2,573,809.72
5. Step 5: Solve for x
   x = 2,573,809.72/1,788.86
6. Step 6: Final answer
   x = 1,438.80