Finding the Fourth Proportional to 1,123.48, 1,684.50 and 603.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,123.48 : 1,684.50 = 603.16 : x
2. Step 2: Convert to fraction form
   1,123.48/1,684.50 = 603.16/x
3. Step 3: Cross multiply
   1,123.48x = 1,684.50 × 603.16
4. Step 4: Simplify right side
   1,123.48x = 1,016,023.02
5. Step 5: Solve for x
   x = 1,016,023.02/1,123.48
6. Step 6: Final answer
   x = 904.35