Finding the Fourth Proportional to 1,863.30, 2,791.88 and 1,314.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,863.30 : 2,791.88 = 1,314.33 : x
2. Step 2: Convert to fraction form
   1,863.30/2,791.88 = 1,314.33/x
3. Step 3: Cross multiply
   1,863.30x = 2,791.88 × 1,314.33
4. Step 4: Simplify right side
   1,863.30x = 3,669,445.07
5. Step 5: Solve for x
   x = 3,669,445.07/1,863.30
6. Step 6: Final answer
   x = 1,969.33