Finding the Fourth Proportional to 1,216.84, 1,678.35 and 796.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,216.84 : 1,678.35 = 796.52 : x
2. Step 2: Convert to fraction form
   1,216.84/1,678.35 = 796.52/x
3. Step 3: Cross multiply
   1,216.84x = 1,678.35 × 796.52
4. Step 4: Simplify right side
   1,216.84x = 1,336,830.95
5. Step 5: Solve for x
   x = 1,336,830.95/1,216.84
6. Step 6: Final answer
   x = 1,098.61