Finding the Fourth Proportional to 2,074,321.76, 3,112,937.04 and 859,917.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,074,321.76 : 3,112,937.04 = 859,917.10 : x
2. Step 2: Convert to fraction form
   2,074,321.76/3,112,937.04 = 859,917.10/x
3. Step 3: Cross multiply
   2,074,321.76x = 3,112,937.04 × 859,917.10
4. Step 4: Simplify right side
   2,074,321.76x = 2,676,867,791,919.38
5. Step 5: Solve for x
   x = 2,676,867,791,919.38/2,074,321.76
6. Step 6: Final answer
   x = 1,290,478.58