Finding the Fourth Proportional to 5,256.10, 7,253.43 and 2,898.22

Step by Step Solution

1. Step 1: Write the proportion equation
   5,256.10 : 7,253.43 = 2,898.22 : x
2. Step 2: Convert to fraction form
   5,256.10/7,253.43 = 2,898.22/x
3. Step 3: Cross multiply
   5,256.10x = 7,253.43 × 2,898.22
4. Step 4: Simplify right side
   5,256.10x = 21,022,035.89
5. Step 5: Solve for x
   x = 21,022,035.89/5,256.10
6. Step 6: Final answer
   x = 3,999.55