Finding the Fourth Proportional to 2,422.32, 3,634.88 and 1,312.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,422.32 : 3,634.88 = 1,312.56 : x
2. Step 2: Convert to fraction form
   2,422.32/3,634.88 = 1,312.56/x
3. Step 3: Cross multiply
   2,422.32x = 3,634.88 × 1,312.56
4. Step 4: Simplify right side
   2,422.32x = 4,770,998.09
5. Step 5: Solve for x
   x = 4,770,998.09/2,422.32
6. Step 6: Final answer
   x = 1,969.60