Finding the Fourth Proportional to 865,834.30, 1,194,077.67 and 543,574.42

Step by Step Solution

1. Step 1: Write the proportion equation
   865,834.30 : 1,194,077.67 = 543,574.42 : x
2. Step 2: Convert to fraction form
   865,834.30/1,194,077.67 = 543,574.42/x
3. Step 3: Cross multiply
   865,834.30x = 1,194,077.67 × 543,574.42
4. Step 4: Simplify right side
   865,834.30x = 649,070,076,905.20
5. Step 5: Solve for x
   x = 649,070,076,905.20/865,834.30
6. Step 6: Final answer
   x = 749,646.99