Finding the Fourth Proportional to 2,899.49, 4,000.61 and 1,851.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,899.49 : 4,000.61 = 1,851.89 : x
2. Step 2: Convert to fraction form
   2,899.49/4,000.61 = 1,851.89/x
3. Step 3: Cross multiply
   2,899.49x = 4,000.61 × 1,851.89
4. Step 4: Simplify right side
   2,899.49x = 7,408,674.28
5. Step 5: Solve for x
   x = 7,408,674.28/2,899.49
6. Step 6: Final answer
   x = 2,555.17