Finding the Fourth Proportional to 991,950, 1,368,900.72 and 539,250.72

Step by Step Solution

1. Step 1: Write the proportion equation
   991,950 : 1,368,900.72 = 539,250.72 : x
2. Step 2: Convert to fraction form
   991,950/1,368,900.72 = 539,250.72/x
3. Step 3: Cross multiply
   991,950x = 1,368,900.72 × 539,250.72
4. Step 4: Simplify right side
   991,950x = 738,180,698,868.52
5. Step 5: Solve for x
   x = 738,180,698,868.52/991,950
6. Step 6: Final answer
   x = 744,171.28