Finding the Fourth Proportional to 1,266,766.68, 1,748,104.56 and 722,892.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,266,766.68 : 1,748,104.56 = 722,892.72 : x
2. Step 2: Convert to fraction form
   1,266,766.68/1,748,104.56 = 722,892.72/x
3. Step 3: Cross multiply
   1,266,766.68x = 1,748,104.56 × 722,892.72
4. Step 4: Simplify right side
   1,266,766.68x = 1,263,692,060,222.80
5. Step 5: Solve for x
   x = 1,263,692,060,222.80/1,266,766.68
6. Step 6: Final answer
   x = 997,572.86