Finding the Fourth Proportional to 2,262.88, 3,128.55 and 1,706.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,262.88 : 3,128.55 = 1,706.21 : x
2. Step 2: Convert to fraction form
   2,262.88/3,128.55 = 1,706.21/x
3. Step 3: Cross multiply
   2,262.88x = 3,128.55 × 1,706.21
4. Step 4: Simplify right side
   2,262.88x = 5,337,947.65
5. Step 5: Solve for x
   x = 5,337,947.65/2,262.88
6. Step 6: Final answer
   x = 2,358.92