Finding the Fourth Proportional to 839,178.88, 1,158,026.56 and 476,554.84

Step by Step Solution

1. Step 1: Write the proportion equation
   839,178.88 : 1,158,026.56 = 476,554.84 : x
2. Step 2: Convert to fraction form
   839,178.88/1,158,026.56 = 476,554.84/x
3. Step 3: Cross multiply
   839,178.88x = 1,158,026.56 × 476,554.84
4. Step 4: Simplify right side
   839,178.88x = 551,863,162,016.55
5. Step 5: Solve for x
   x = 551,863,162,016.55/839,178.88
6. Step 6: Final answer
   x = 657,622.80