Finding the Fourth Proportional to 869,704.20, 1,200,248.56 and 502,196.84

Step by Step Solution

1. Step 1: Write the proportion equation
   869,704.20 : 1,200,248.56 = 502,196.84 : x
2. Step 2: Convert to fraction form
   869,704.20/1,200,248.56 = 502,196.84/x
3. Step 3: Cross multiply
   869,704.20x = 1,200,248.56 × 502,196.84
4. Step 4: Simplify right side
   869,704.20x = 602,761,034,046.55
5. Step 5: Solve for x
   x = 602,761,034,046.55/869,704.20
6. Step 6: Final answer
   x = 693,064.42