Finding the Fourth Proportional to 5,256.57, 7,253.91 and 2,898.72

Step by Step Solution

1. Step 1: Write the proportion equation
   5,256.57 : 7,253.91 = 2,898.72 : x
2. Step 2: Convert to fraction form
   5,256.57/7,253.91 = 2,898.72/x
3. Step 3: Cross multiply
   5,256.57x = 7,253.91 × 2,898.72
4. Step 4: Simplify right side
   5,256.57x = 21,027,054.00
5. Step 5: Solve for x
   x = 21,027,054.00/5,256.57
6. Step 6: Final answer
   x = 4,000.15