Finding the Fourth Proportional to 2,988,498.28, 4,482,266.23 and 858,097.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,988,498.28 : 4,482,266.23 = 858,097.84 : x
2. Step 2: Convert to fraction form
   2,988,498.28/4,482,266.23 = 858,097.84/x
3. Step 3: Cross multiply
   2,988,498.28x = 4,482,266.23 × 858,097.84
4. Step 4: Simplify right side
   2,988,498.28x = 3,846,222,945,711.37
5. Step 5: Solve for x
   x = 3,846,222,945,711.37/2,988,498.28
6. Step 6: Final answer
   x = 1,287,008.59