Finding the Fourth Proportional to 2,988,498.15, 4,482,266.04 and 858,097.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,988,498.15 : 4,482,266.04 = 858,097.71 : x
2. Step 2: Convert to fraction form
   2,988,498.15/4,482,266.04 = 858,097.71/x
3. Step 3: Cross multiply
   2,988,498.15x = 4,482,266.04 × 858,097.71
4. Step 4: Simplify right side
   2,988,498.15x = 3,846,222,224,534.77
5. Step 5: Solve for x
   x = 3,846,222,224,534.77/2,988,498.15
6. Step 6: Final answer
   x = 1,287,008.40