Finding the Fourth Proportional to 1,262,105.47, 1,741,698.61 and 689,141.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,262,105.47 : 1,741,698.61 = 689,141.58 : x
2. Step 2: Convert to fraction form
   1,262,105.47/1,741,698.61 = 689,141.58/x
3. Step 3: Cross multiply
   1,262,105.47x = 1,741,698.61 × 689,141.58
4. Step 4: Simplify right side
   1,262,105.47x = 1,200,276,931,979.20
5. Step 5: Solve for x
   x = 1,200,276,931,979.20/1,262,105.47
6. Step 6: Final answer
   x = 951,011.59