Finding the Fourth Proportional to 1,117,642.86, 1,542,304.38 and 634,179.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117,642.86 : 1,542,304.38 = 634,179.18 : x
2. Step 2: Convert to fraction form
   1,117,642.86/1,542,304.38 = 634,179.18/x
3. Step 3: Cross multiply
   1,117,642.86x = 1,542,304.38 × 634,179.18
4. Step 4: Simplify right side
   1,117,642.86x = 978,097,327,018.81
5. Step 5: Solve for x
   x = 978,097,327,018.81/1,117,642.86
6. Step 6: Final answer
   x = 875,143.00