Finding the Fourth Proportional to 2,123.46, 2,930.36 and 1,191.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.46 : 2,930.36 = 1,191.96 : x
2. Step 2: Convert to fraction form
   2,123.46/2,930.36 = 1,191.96/x
3. Step 3: Cross multiply
   2,123.46x = 2,930.36 × 1,191.96
4. Step 4: Simplify right side
   2,123.46x = 3,492,865.95
5. Step 5: Solve for x
   x = 3,492,865.95/2,123.46
6. Step 6: Final answer
   x = 1,644.89