Finding the Fourth Proportional to 2,612,841.50, 3,919,275.46 and 815,574.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,612,841.50 : 3,919,275.46 = 815,574.32 : x
2. Step 2: Convert to fraction form
   2,612,841.50/3,919,275.46 = 815,574.32/x
3. Step 3: Cross multiply
   2,612,841.50x = 3,919,275.46 × 815,574.32
4. Step 4: Simplify right side
   2,612,841.50x = 3,196,460,398,585.81
5. Step 5: Solve for x
   x = 3,196,460,398,585.81/2,612,841.50
6. Step 6: Final answer
   x = 1,223,365.60