Finding the Fourth Proportional to 2,899.88, 4,343.94 and 2,315.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,899.88 : 4,343.94 = 2,315.87 : x
2. Step 2: Convert to fraction form
   2,899.88/4,343.94 = 2,315.87/x
3. Step 3: Cross multiply
   2,899.88x = 4,343.94 × 2,315.87
4. Step 4: Simplify right side
   2,899.88x = 10,060,000.33
5. Step 5: Solve for x
   x = 10,060,000.33/2,899.88
6. Step 6: Final answer
   x = 3,469.11