Finding the Fourth Proportional to 2,665,379.23, 3,998,065.61 and 868,259.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665,379.23 : 3,998,065.61 = 868,259.77 : x
2. Step 2: Convert to fraction form
   2,665,379.23/3,998,065.61 = 868,259.77/x
3. Step 3: Cross multiply
   2,665,379.23x = 3,998,065.61 × 868,259.77
4. Step 4: Simplify right side
   2,665,379.23x = 3,471,359,526,983.51
5. Step 5: Solve for x
   x = 3,471,359,526,983.51/2,665,379.23
6. Step 6: Final answer
   x = 1,302,388.60