Finding the Fourth Proportional to 1,386.92, 1,914.00 and 797.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,386.92 : 1,914.00 = 797.48 : x
2. Step 2: Convert to fraction form
   1,386.92/1,914.00 = 797.48/x
3. Step 3: Cross multiply
   1,386.92x = 1,914.00 × 797.48
4. Step 4: Simplify right side
   1,386.92x = 1,526,371.34
5. Step 5: Solve for x
   x = 1,526,371.34/1,386.92
6. Step 6: Final answer
   x = 1,100.55