Finding the Fourth Proportional to 1,170,949.50, 1,615,910.31 and 634,405.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,170,949.50 : 1,615,910.31 = 634,405.50 : x
2. Step 2: Convert to fraction form
   1,170,949.50/1,615,910.31 = 634,405.50/x
3. Step 3: Cross multiply
   1,170,949.50x = 1,615,910.31 × 634,405.50
4. Step 4: Simplify right side
   1,170,949.50x = 1,025,142,388,170.71
5. Step 5: Solve for x
   x = 1,025,142,388,170.71/1,170,949.50
6. Step 6: Final answer
   x = 875,479.59