Finding the Fourth Proportional to 2,126.40, 2,934.17 and 1,181.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,126.40 : 2,934.17 = 1,181.94 : x
2. Step 2: Convert to fraction form
   2,126.40/2,934.17 = 1,181.94/x
3. Step 3: Cross multiply
   2,126.40x = 2,934.17 × 1,181.94
4. Step 4: Simplify right side
   2,126.40x = 3,468,023.56
5. Step 5: Solve for x
   x = 3,468,023.56/2,126.40
6. Step 6: Final answer
   x = 1,630.94