Finding the Fourth Proportional to 1,767.68, 2,646.08 and 1,665.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,767.68 : 2,646.08 = 1,665.12 : x
2. Step 2: Convert to fraction form
   1,767.68/2,646.08 = 1,665.12/x
3. Step 3: Cross multiply
   1,767.68x = 2,646.08 × 1,665.12
4. Step 4: Simplify right side
   1,767.68x = 4,406,040.73
5. Step 5: Solve for x
   x = 4,406,040.73/1,767.68
6. Step 6: Final answer
   x = 2,492.56