Finding the Fourth Proportional to 2,781,279.51, 4,172,566.25 and 862,088.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,781,279.51 : 4,172,566.25 = 862,088.91 : x
2. Step 2: Convert to fraction form
   2,781,279.51/4,172,566.25 = 862,088.91/x
3. Step 3: Cross multiply
   2,781,279.51x = 4,172,566.25 × 862,088.91
4. Step 4: Simplify right side
   2,781,279.51x = 3,597,123,090,365.29
5. Step 5: Solve for x
   x = 3,597,123,090,365.29/2,781,279.51
6. Step 6: Final answer
   x = 1,293,333.91