Finding the Fourth Proportional to 2,233.74, 3,079.71 and 1,643.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.74 : 3,079.71 = 1,643.25 : x
2. Step 2: Convert to fraction form
   2,233.74/3,079.71 = 1,643.25/x
3. Step 3: Cross multiply
   2,233.74x = 3,079.71 × 1,643.25
4. Step 4: Simplify right side
   2,233.74x = 5,060,733.46
5. Step 5: Solve for x
   x = 5,060,733.46/2,233.74
6. Step 6: Final answer
   x = 2,265.59