Finding the Fourth Proportional to 5,256.27, 7,253.64 and 2,898.42

Step by Step Solution

1. Step 1: Write the proportion equation
   5,256.27 : 7,253.64 = 2,898.42 : x
2. Step 2: Convert to fraction form
   5,256.27/7,253.64 = 2,898.42/x
3. Step 3: Cross multiply
   5,256.27x = 7,253.64 × 2,898.42
4. Step 4: Simplify right side
   5,256.27x = 21,024,095.25
5. Step 5: Solve for x
   x = 21,024,095.25/5,256.27
6. Step 6: Final answer
   x = 3,999.81