Finding the Fourth Proportional to 1,942.02, 2,911.91 and 1,326.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.02 : 2,911.91 = 1,326.47 : x
2. Step 2: Convert to fraction form
   1,942.02/2,911.91 = 1,326.47/x
3. Step 3: Cross multiply
   1,942.02x = 2,911.91 × 1,326.47
4. Step 4: Simplify right side
   1,942.02x = 3,862,565.22
5. Step 5: Solve for x
   x = 3,862,565.22/1,942.02
6. Step 6: Final answer
   x = 1,988.94