Finding the Fourth Proportional to 1,634.68, 2,449.72 and 1,267.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,634.68 : 2,449.72 = 1,267.72 : x
2. Step 2: Convert to fraction form
   1,634.68/2,449.72 = 1,267.72/x
3. Step 3: Cross multiply
   1,634.68x = 2,449.72 × 1,267.72
4. Step 4: Simplify right side
   1,634.68x = 3,105,559.04
5. Step 5: Solve for x
   x = 3,105,559.04/1,634.68
6. Step 6: Final answer
   x = 1,899.80