Finding the Fourth Proportional to 1,978.39, 2,730.48 and 1,233.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.39 : 2,730.48 = 1,233.16 : x
2. Step 2: Convert to fraction form
   1,978.39/2,730.48 = 1,233.16/x
3. Step 3: Cross multiply
   1,978.39x = 2,730.48 × 1,233.16
4. Step 4: Simplify right side
   1,978.39x = 3,367,107.27
5. Step 5: Solve for x
   x = 3,367,107.27/1,978.39
6. Step 6: Final answer
   x = 1,701.94