Finding the Fourth Proportional to 945,953.52, 1,418,890.59 and 440,340.72

Step by Step Solution

1. Step 1: Write the proportion equation
   945,953.52 : 1,418,890.59 = 440,340.72 : x
2. Step 2: Convert to fraction form
   945,953.52/1,418,890.59 = 440,340.72/x
3. Step 3: Cross multiply
   945,953.52x = 1,418,890.59 × 440,340.72
4. Step 4: Simplify right side
   945,953.52x = 624,795,304,001.83
5. Step 5: Solve for x
   x = 624,795,304,001.83/945,953.52
6. Step 6: Final answer
   x = 660,492.60