Finding the Fourth Proportional to 2,590.71, 3,883.29 and 1,028.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.71 : 3,883.29 = 1,028.55 : x
2. Step 2: Convert to fraction form
   2,590.71/3,883.29 = 1,028.55/x
3. Step 3: Cross multiply
   2,590.71x = 3,883.29 × 1,028.55
4. Step 4: Simplify right side
   2,590.71x = 3,994,157.93
5. Step 5: Solve for x
   x = 3,994,157.93/2,590.71
6. Step 6: Final answer
   x = 1,541.72