Finding the Fourth Proportional to 1,662.08, 2,493.34 and 1,272.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.08 : 2,493.34 = 1,272.82 : x
2. Step 2: Convert to fraction form
   1,662.08/2,493.34 = 1,272.82/x
3. Step 3: Cross multiply
   1,662.08x = 2,493.34 × 1,272.82
4. Step 4: Simplify right side
   1,662.08x = 3,173,573.02
5. Step 5: Solve for x
   x = 3,173,573.02/1,662.08
6. Step 6: Final answer
   x = 1,909.40