Finding the Fourth Proportional to 1,117,906.30, 1,542,582.12 and 634,375.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117,906.30 : 1,542,582.12 = 634,375.18 : x
2. Step 2: Convert to fraction form
   1,117,906.30/1,542,582.12 = 634,375.18/x
3. Step 3: Cross multiply
   1,117,906.30x = 1,542,582.12 × 634,375.18
4. Step 4: Simplify right side
   1,117,906.30x = 978,575,810,039.78
5. Step 5: Solve for x
   x = 978,575,810,039.78/1,117,906.30
6. Step 6: Final answer
   x = 875,364.79