Finding the Fourth Proportional to 2,261.25, 3,120.71 and 1,329.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,261.25 : 3,120.71 = 1,329.93 : x
2. Step 2: Convert to fraction form
   2,261.25/3,120.71 = 1,329.93/x
3. Step 3: Cross multiply
   2,261.25x = 3,120.71 × 1,329.93
4. Step 4: Simplify right side
   2,261.25x = 4,150,319.20
5. Step 5: Solve for x
   x = 4,150,319.20/2,261.25
6. Step 6: Final answer
   x = 1,835.41