Finding the Fourth Proportional to 988,799.59, 1,364,570.31 and 559,144

Step by Step Solution

1. Step 1: Write the proportion equation
   988,799.59 : 1,364,570.31 = 559,144 : x
2. Step 2: Convert to fraction form
   988,799.59/1,364,570.31 = 559,144/x
3. Step 3: Cross multiply
   988,799.59x = 1,364,570.31 × 559,144
4. Step 4: Simplify right side
   988,799.59x = 762,991,301,414.64
5. Step 5: Solve for x
   x = 762,991,301,414.64/988,799.59
6. Step 6: Final answer
   x = 771,633.92