Finding the Fourth Proportional to 2,123, 2,929.76 and 1,191.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123 : 2,929.76 = 1,191.52 : x
2. Step 2: Convert to fraction form
   2,123/2,929.76 = 1,191.52/x
3. Step 3: Cross multiply
   2,123x = 2,929.76 × 1,191.52
4. Step 4: Simplify right side
   2,123x = 3,490,867.64
5. Step 5: Solve for x
   x = 3,490,867.64/2,123
6. Step 6: Final answer
   x = 1,644.31