Finding the Fourth Proportional to 1,107,016.56, 1,661,156.28 and 433,152.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,107,016.56 : 1,661,156.28 = 433,152.72 : x
2. Step 2: Convert to fraction form
   1,107,016.56/1,661,156.28 = 433,152.72/x
3. Step 3: Cross multiply
   1,107,016.56x = 1,661,156.28 × 433,152.72
4. Step 4: Simplify right side
   1,107,016.56x = 719,534,361,027.08
5. Step 5: Solve for x
   x = 719,534,361,027.08/1,107,016.56
6. Step 6: Final answer
   x = 649,976.15