Finding the Fourth Proportional to 2,339.91, 3,228.93 and 1,292.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,339.91 : 3,228.93 = 1,292.00 : x
2. Step 2: Convert to fraction form
   2,339.91/3,228.93 = 1,292.00/x
3. Step 3: Cross multiply
   2,339.91x = 3,228.93 × 1,292.00
4. Step 4: Simplify right side
   2,339.91x = 4,171,761.42
5. Step 5: Solve for x
   x = 4,171,761.42/2,339.91
6. Step 6: Final answer
   x = 1,782.87