Finding the Fourth Proportional to 1,788.62, 2,468.34 and 1,042.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,788.62 : 2,468.34 = 1,042.61 : x
2. Step 2: Convert to fraction form
   1,788.62/2,468.34 = 1,042.61/x
3. Step 3: Cross multiply
   1,788.62x = 2,468.34 × 1,042.61
4. Step 4: Simplify right side
   1,788.62x = 2,573,503.63
5. Step 5: Solve for x
   x = 2,573,503.63/1,788.62
6. Step 6: Final answer
   x = 1,438.82