Finding the Fourth Proportional to 2,900.88, 4,350.38 and 1,256.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,900.88 : 4,350.38 = 1,256.36 : x
2. Step 2: Convert to fraction form
   2,900.88/4,350.38 = 1,256.36/x
3. Step 3: Cross multiply
   2,900.88x = 4,350.38 × 1,256.36
4. Step 4: Simplify right side
   2,900.88x = 5,465,615.38
5. Step 5: Solve for x
   x = 5,465,615.38/2,900.88
6. Step 6: Final answer
   x = 1,884.12