Finding the Fourth Proportional to 1,064,446.72, 1,596,665.60 and 433,210.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064,446.72 : 1,596,665.60 = 433,210.88 : x
2. Step 2: Convert to fraction form
   1,064,446.72/1,596,665.60 = 433,210.88/x
3. Step 3: Cross multiply
   1,064,446.72x = 1,596,665.60 × 433,210.88
4. Step 4: Simplify right side
   1,064,446.72x = 691,692,909,641.73
5. Step 5: Solve for x
   x = 691,692,909,641.73/1,064,446.72
6. Step 6: Final answer
   x = 649,814.50