Finding the Fourth Proportional to 1,642.22, 2,467.58 and 1,233.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,642.22 : 2,467.58 = 1,233.98 : x
2. Step 2: Convert to fraction form
   1,642.22/2,467.58 = 1,233.98/x
3. Step 3: Cross multiply
   1,642.22x = 2,467.58 × 1,233.98
4. Step 4: Simplify right side
   1,642.22x = 3,044,925.86
5. Step 5: Solve for x
   x = 3,044,925.86/1,642.22
6. Step 6: Final answer
   x = 1,854.16