Finding the Fourth Proportional to 1,766.64, 2,649.88 and 1,185.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.64 : 2,649.88 = 1,185.36 : x
2. Step 2: Convert to fraction form
   1,766.64/2,649.88 = 1,185.36/x
3. Step 3: Cross multiply
   1,766.64x = 2,649.88 × 1,185.36
4. Step 4: Simplify right side
   1,766.64x = 3,141,061.76
5. Step 5: Solve for x
   x = 3,141,061.76/1,766.64
6. Step 6: Final answer
   x = 1,777.99