Finding the Fourth Proportional to 2,123.86, 2,930.25 and 1,192.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.86 : 2,930.25 = 1,192.18 : x
2. Step 2: Convert to fraction form
   2,123.86/2,930.25 = 1,192.18/x
3. Step 3: Cross multiply
   2,123.86x = 2,930.25 × 1,192.18
4. Step 4: Simplify right side
   2,123.86x = 3,493,385.45
5. Step 5: Solve for x
   x = 3,493,385.45/2,123.86
6. Step 6: Final answer
   x = 1,644.83