Finding the Fourth Proportional to 1,604.42, 2,404.78 and 736.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,604.42 : 2,404.78 = 736.90 : x
2. Step 2: Convert to fraction form
   1,604.42/2,404.78 = 736.90/x
3. Step 3: Cross multiply
   1,604.42x = 2,404.78 × 736.90
4. Step 4: Simplify right side
   1,604.42x = 1,772,082.38
5. Step 5: Solve for x
   x = 1,772,082.38/1,604.42
6. Step 6: Final answer
   x = 1,104.50