Finding the Fourth Proportional to 1,367.52, 1,886.97 and 778.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,367.52 : 1,886.97 = 778.02 : x
2. Step 2: Convert to fraction form
   1,367.52/1,886.97 = 778.02/x
3. Step 3: Cross multiply
   1,367.52x = 1,886.97 × 778.02
4. Step 4: Simplify right side
   1,367.52x = 1,468,100.40
5. Step 5: Solve for x
   x = 1,468,100.40/1,367.52
6. Step 6: Final answer
   x = 1,073.55