Finding the Fourth Proportional to 2,899.69, 4,353.94 and 1,810.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,899.69 : 4,353.94 = 1,810.89 : x
2. Step 2: Convert to fraction form
   2,899.69/4,353.94 = 1,810.89/x
3. Step 3: Cross multiply
   2,899.69x = 4,353.94 × 1,810.89
4. Step 4: Simplify right side
   2,899.69x = 7,884,506.41
5. Step 5: Solve for x
   x = 7,884,506.41/2,899.69
6. Step 6: Final answer
   x = 2,719.09