Finding the Fourth Proportional to 1,153.83, 1,591.07 and 942.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153.83 : 1,591.07 = 942.42 : x
2. Step 2: Convert to fraction form
   1,153.83/1,591.07 = 942.42/x
3. Step 3: Cross multiply
   1,153.83x = 1,591.07 × 942.42
4. Step 4: Simplify right side
   1,153.83x = 1,499,451.48
5. Step 5: Solve for x
   x = 1,499,451.48/1,153.83
6. Step 6: Final answer
   x = 1,299.54