Finding the Fourth Proportional to 1,587,819.30, 2,381,725.27 and 689,144.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,587,819.30 : 2,381,725.27 = 689,144.55 : x
2. Step 2: Convert to fraction form
   1,587,819.30/2,381,725.27 = 689,144.55/x
3. Step 3: Cross multiply
   1,587,819.30x = 2,381,725.27 × 689,144.55
4. Step 4: Simplify right side
   1,587,819.30x = 1,641,352,989,417.78
5. Step 5: Solve for x
   x = 1,641,352,989,417.78/1,587,819.30
6. Step 6: Final answer
   x = 1,033,715.23