Finding the Fourth Proportional to 1,386.52, 1,913.34 and 797.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386.52 : 1,913.34 = 797.14 : x
2. Step 2: Convert to fraction form
   1,386.52/1,913.34 = 797.14/x
3. Step 3: Cross multiply
   1,386.52x = 1,913.34 × 797.14
4. Step 4: Simplify right side
   1,386.52x = 1,525,199.85
5. Step 5: Solve for x
   x = 1,525,199.85/1,386.52
6. Step 6: Final answer
   x = 1,100.02