Finding the Fourth Proportional to 1,433,675.62, 1,978,472.24 and 780,306.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433,675.62 : 1,978,472.24 = 780,306.32 : x
2. Step 2: Convert to fraction form
   1,433,675.62/1,978,472.24 = 780,306.32/x
3. Step 3: Cross multiply
   1,433,675.62x = 1,978,472.24 × 780,306.32
4. Step 4: Simplify right side
   1,433,675.62x = 1,543,814,399,713.50
5. Step 5: Solve for x
   x = 1,543,814,399,713.50/1,433,675.62
6. Step 6: Final answer
   x = 1,076,822.67