Finding the Fourth Proportional to 5,258.31, 7,256.81 and 2,900.46

Step by Step Solution

1. Step 1: Write the proportion equation
   5,258.31 : 7,256.81 = 2,900.46 : x
2. Step 2: Convert to fraction form
   5,258.31/7,256.81 = 2,900.46/x
3. Step 3: Cross multiply
   5,258.31x = 7,256.81 × 2,900.46
4. Step 4: Simplify right side
   5,258.31x = 21,048,072.63
5. Step 5: Solve for x
   x = 21,048,072.63/5,258.31
6. Step 6: Final answer
   x = 4,002.82