Finding the Fourth Proportional to 1,118,366.60, 1,543,389.59 and 634,976.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118,366.60 : 1,543,389.59 = 634,976.72 : x
2. Step 2: Convert to fraction form
   1,118,366.60/1,543,389.59 = 634,976.72/x
3. Step 3: Cross multiply
   1,118,366.60x = 1,543,389.59 × 634,976.72
4. Step 4: Simplify right side
   1,118,366.60x = 980,016,459,198.55
5. Step 5: Solve for x
   x = 980,016,459,198.55/1,118,366.60
6. Step 6: Final answer
   x = 876,292.68