Finding the Fourth Proportional to 1,764.88, 2,435.76 and 1,066.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,764.88 : 2,435.76 = 1,066.28 : x
2. Step 2: Convert to fraction form
   1,764.88/2,435.76 = 1,066.28/x
3. Step 3: Cross multiply
   1,764.88x = 2,435.76 × 1,066.28
4. Step 4: Simplify right side
   1,764.88x = 2,597,202.17
5. Step 5: Solve for x
   x = 2,597,202.17/1,764.88
6. Step 6: Final answer
   x = 1,471.60