Finding the Fourth Proportional to 2,422.64, 3,633.57 and 690.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,422.64 : 3,633.57 = 690.86 : x
2. Step 2: Convert to fraction form
   2,422.64/3,633.57 = 690.86/x
3. Step 3: Cross multiply
   2,422.64x = 3,633.57 × 690.86
4. Step 4: Simplify right side
   2,422.64x = 2,510,288.17
5. Step 5: Solve for x
   x = 2,510,288.17/2,422.64
6. Step 6: Final answer
   x = 1,036.18