Finding the Fourth Proportional to 1,359.30, 1,875.15 and 799.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.30 : 1,875.15 = 799.42 : x
2. Step 2: Convert to fraction form
   1,359.30/1,875.15 = 799.42/x
3. Step 3: Cross multiply
   1,359.30x = 1,875.15 × 799.42
4. Step 4: Simplify right side
   1,359.30x = 1,499,028.38
5. Step 5: Solve for x
   x = 1,499,028.38/1,359.30
6. Step 6: Final answer
   x = 1,102.79