Finding the Fourth Proportional to 2,386,659.29, 3,578,879.01 and 869,285.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,386,659.29 : 3,578,879.01 = 869,285.87 : x
2. Step 2: Convert to fraction form
   2,386,659.29/3,578,879.01 = 869,285.87/x
3. Step 3: Cross multiply
   2,386,659.29x = 3,578,879.01 × 869,285.87
4. Step 4: Simplify right side
   2,386,659.29x = 3,111,068,953,832.59
5. Step 5: Solve for x
   x = 3,111,068,953,832.59/2,386,659.29
6. Step 6: Final answer
   x = 1,303,524.54