Finding the Fourth Proportional to 5,137.89, 7,090.17 and 2,899.86

Step by Step Solution

1. Step 1: Write the proportion equation
   5,137.89 : 7,090.17 = 2,899.86 : x
2. Step 2: Convert to fraction form
   5,137.89/7,090.17 = 2,899.86/x
3. Step 3: Cross multiply
   5,137.89x = 7,090.17 × 2,899.86
4. Step 4: Simplify right side
   5,137.89x = 20,560,526.96
5. Step 5: Solve for x
   x = 20,560,526.96/5,137.89
6. Step 6: Final answer
   x = 4,001.74