Finding the Fourth Proportional to 1,942.17, 2,680.22 and 1,102.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.17 : 2,680.22 = 1,102.89 : x
2. Step 2: Convert to fraction form
   1,942.17/2,680.22 = 1,102.89/x
3. Step 3: Cross multiply
   1,942.17x = 2,680.22 × 1,102.89
4. Step 4: Simplify right side
   1,942.17x = 2,955,993.41
5. Step 5: Solve for x
   x = 2,955,993.41/1,942.17
6. Step 6: Final answer
   x = 1,522.00