Finding the Fourth Proportional to 1,942.12, 2,910.12 and 1,160.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.12 : 2,910.12 = 1,160.20 : x
2. Step 2: Convert to fraction form
   1,942.12/2,910.12 = 1,160.20/x
3. Step 3: Cross multiply
   1,942.12x = 2,910.12 × 1,160.20
4. Step 4: Simplify right side
   1,942.12x = 3,376,321.22
5. Step 5: Solve for x
   x = 3,376,321.22/1,942.12
6. Step 6: Final answer
   x = 1,738.47