Finding the Fourth Proportional to 1,157,905.98, 1,597,891.59 and 648,606.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,157,905.98 : 1,597,891.59 = 648,606.78 : x
2. Step 2: Convert to fraction form
   1,157,905.98/1,597,891.59 = 648,606.78/x
3. Step 3: Cross multiply
   1,157,905.98x = 1,597,891.59 × 648,606.78
4. Step 4: Simplify right side
   1,157,905.98x = 1,036,403,318,978.98
5. Step 5: Solve for x
   x = 1,036,403,318,978.98/1,157,905.98
6. Step 6: Final answer
   x = 895,066.90