Finding the Fourth Proportional to 1,151,142.30, 1,725,728.76 and 441,679.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151,142.30 : 1,725,728.76 = 441,679.50 : x
2. Step 2: Convert to fraction form
   1,151,142.30/1,725,728.76 = 441,679.50/x
3. Step 3: Cross multiply
   1,151,142.30x = 1,725,728.76 × 441,679.50
4. Step 4: Simplify right side
   1,151,142.30x = 762,219,015,852.42
5. Step 5: Solve for x
   x = 762,219,015,852.42/1,151,142.30
6. Step 6: Final answer
   x = 662,141.44