Finding the Fourth Proportional to 2,123.96, 2,931.50 and 1,192.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.96 : 2,931.50 = 1,192.76 : x
2. Step 2: Convert to fraction form
   2,123.96/2,931.50 = 1,192.76/x
3. Step 3: Cross multiply
   2,123.96x = 2,931.50 × 1,192.76
4. Step 4: Simplify right side
   2,123.96x = 3,496,575.94
5. Step 5: Solve for x
   x = 3,496,575.94/2,123.96
6. Step 6: Final answer
   x = 1,646.25