Finding the Fourth Proportional to 4,986,766.31, 7,480,151.51 and 1,200,249.18

Step by Step Solution

1. Step 1: Write the proportion equation
   4,986,766.31 : 7,480,151.51 = 1,200,249.18 : x
2. Step 2: Convert to fraction form
   4,986,766.31/7,480,151.51 = 1,200,249.18/x
3. Step 3: Cross multiply
   4,986,766.31x = 7,480,151.51 × 1,200,249.18
4. Step 4: Simplify right side
   4,986,766.31x = 8,978,045,710,152.02
5. Step 5: Solve for x
   x = 8,978,045,710,152.02/4,986,766.31
6. Step 6: Final answer
   x = 1,800,374.26