Finding the Fourth Proportional to 1,394.99, 1,925.10 and 797.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,394.99 : 1,925.10 = 797.60 : x
2. Step 2: Convert to fraction form
   1,394.99/1,925.10 = 797.60/x
3. Step 3: Cross multiply
   1,394.99x = 1,925.10 × 797.60
4. Step 4: Simplify right side
   1,394.99x = 1,535,455.77
5. Step 5: Solve for x
   x = 1,535,455.77/1,394.99
6. Step 6: Final answer
   x = 1,100.70