Finding the Fourth Proportional to 2,547,870, 3,822,395.52 and 864,973.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,547,870 : 3,822,395.52 = 864,973.50 : x
2. Step 2: Convert to fraction form
   2,547,870/3,822,395.52 = 864,973.50/x
3. Step 3: Cross multiply
   2,547,870x = 3,822,395.52 × 864,973.50
4. Step 4: Simplify right side
   2,547,870x = 3,306,270,831,318.72
5. Step 5: Solve for x
   x = 3,306,270,831,318.72/2,547,870
6. Step 6: Final answer
   x = 1,297,660.72