Finding the Fourth Proportional to 2,191.61, 3,023.42 and 1,294.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,191.61 : 3,023.42 = 1,294.74 : x
2. Step 2: Convert to fraction form
   2,191.61/3,023.42 = 1,294.74/x
3. Step 3: Cross multiply
   2,191.61x = 3,023.42 × 1,294.74
4. Step 4: Simplify right side
   2,191.61x = 3,914,542.81
5. Step 5: Solve for x
   x = 3,914,542.81/2,191.61
6. Step 6: Final answer
   x = 1,786.15