Finding the Fourth Proportional to 2,158,105.15, 3,235,967.43 and 878,384.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,105.15 : 3,235,967.43 = 878,384.13 : x
2. Step 2: Convert to fraction form
   2,158,105.15/3,235,967.43 = 878,384.13/x
3. Step 3: Cross multiply
   2,158,105.15x = 3,235,967.43 × 878,384.13
4. Step 4: Simplify right side
   2,158,105.15x = 2,842,422,435,708.89
5. Step 5: Solve for x
   x = 2,842,422,435,708.89/2,158,105.15
6. Step 6: Final answer
   x = 1,317,091.73