Finding the Fourth Proportional to 1,120,785.50, 1,546,683.99 and 718,377.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,120,785.50 : 1,546,683.99 = 718,377.50 : x
2. Step 2: Convert to fraction form
   1,120,785.50/1,546,683.99 = 718,377.50/x
3. Step 3: Cross multiply
   1,120,785.50x = 1,546,683.99 × 718,377.50
4. Step 4: Simplify right side
   1,120,785.50x = 1,111,102,978,026.23
5. Step 5: Solve for x
   x = 1,111,102,978,026.23/1,120,785.50
6. Step 6: Final answer
   x = 991,360.95