Finding the Fourth Proportional to 1,191.49, 1,643.01 and 942.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191.49 : 1,643.01 = 942.41 : x
2. Step 2: Convert to fraction form
   1,191.49/1,643.01 = 942.41/x
3. Step 3: Cross multiply
   1,191.49x = 1,643.01 × 942.41
4. Step 4: Simplify right side
   1,191.49x = 1,548,389.05
5. Step 5: Solve for x
   x = 1,548,389.05/1,191.49
6. Step 6: Final answer
   x = 1,299.54