Finding the Fourth Proportional to 2,085,706.10, 3,128,559.15 and 887,327.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,085,706.10 : 3,128,559.15 = 887,327.30 : x
2. Step 2: Convert to fraction form
   2,085,706.10/3,128,559.15 = 887,327.30/x
3. Step 3: Cross multiply
   2,085,706.10x = 3,128,559.15 × 887,327.30
4. Step 4: Simplify right side
   2,085,706.10x = 2,776,055,943,459.80
5. Step 5: Solve for x
   x = 2,776,055,943,459.80/2,085,706.10
6. Step 6: Final answer
   x = 1,330,990.95