Finding the Fourth Proportional to 1,123.72, 1,684.97 and 604.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.72 : 1,684.97 = 604.34 : x
2. Step 2: Convert to fraction form
   1,123.72/1,684.97 = 604.34/x
3. Step 3: Cross multiply
   1,123.72x = 1,684.97 × 604.34
4. Step 4: Simplify right side
   1,123.72x = 1,018,294.77
5. Step 5: Solve for x
   x = 1,018,294.77/1,123.72
6. Step 6: Final answer
   x = 906.18