Finding the Fourth Proportional to 2,139,508.22, 3,208,081.32 and 878,221.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,508.22 : 3,208,081.32 = 878,221.58 : x
2. Step 2: Convert to fraction form
   2,139,508.22/3,208,081.32 = 878,221.58/x
3. Step 3: Cross multiply
   2,139,508.22x = 3,208,081.32 × 878,221.58
4. Step 4: Simplify right side
   2,139,508.22x = 2,817,406,229,578.48
5. Step 5: Solve for x
   x = 2,817,406,229,578.48/2,139,508.22
6. Step 6: Final answer
   x = 1,316,847.59