Finding the Fourth Proportional to 1,176,434.56, 1,623,648 and 660,243.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,176,434.56 : 1,623,648 = 660,243.52 : x
2. Step 2: Convert to fraction form
   1,176,434.56/1,623,648 = 660,243.52/x
3. Step 3: Cross multiply
   1,176,434.56x = 1,623,648 × 660,243.52
4. Step 4: Simplify right side
   1,176,434.56x = 1,072,003,070,760.96
5. Step 5: Solve for x
   x = 1,072,003,070,760.96/1,176,434.56
6. Step 6: Final answer
   x = 911,230.52