Finding the Fourth Proportional to 2,162.71, 2,985.54 and 1,266.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.71 : 2,985.54 = 1,266.32 : x
2. Step 2: Convert to fraction form
   2,162.71/2,985.54 = 1,266.32/x
3. Step 3: Cross multiply
   2,162.71x = 2,985.54 × 1,266.32
4. Step 4: Simplify right side
   2,162.71x = 3,780,661.43
5. Step 5: Solve for x
   x = 3,780,661.43/2,162.71
6. Step 6: Final answer
   x = 1,748.11