Finding the Fourth Proportional to 2,215,555.30, 3,322,002.01 and 866,110.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215,555.30 : 3,322,002.01 = 866,110.69 : x
2. Step 2: Convert to fraction form
   2,215,555.30/3,322,002.01 = 866,110.69/x
3. Step 3: Cross multiply
   2,215,555.30x = 3,322,002.01 × 866,110.69
4. Step 4: Simplify right side
   2,215,555.30x = 2,877,221,453,062.49
5. Step 5: Solve for x
   x = 2,877,221,453,062.49/2,215,555.30
6. Step 6: Final answer
   x = 1,298,645.74