Finding the Fourth Proportional to 2,445.38, 3,667.74 and 690.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,445.38 : 3,667.74 = 690.52 : x
2. Step 2: Convert to fraction form
   2,445.38/3,667.74 = 690.52/x
3. Step 3: Cross multiply
   2,445.38x = 3,667.74 × 690.52
4. Step 4: Simplify right side
   2,445.38x = 2,532,661.48
5. Step 5: Solve for x
   x = 2,532,661.48/2,445.38
6. Step 6: Final answer
   x = 1,035.69