Finding the Fourth Proportional to 2,070,986.22, 3,105,108.81 and 991,657.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070,986.22 : 3,105,108.81 = 991,657.98 : x
2. Step 2: Convert to fraction form
   2,070,986.22/3,105,108.81 = 991,657.98/x
3. Step 3: Cross multiply
   2,070,986.22x = 3,105,108.81 × 991,657.98
4. Step 4: Simplify right side
   2,070,986.22x = 3,079,205,930,204.80
5. Step 5: Solve for x
   x = 3,079,205,930,204.80/2,070,986.22
6. Step 6: Final answer
   x = 1,486,830.72