Finding the Fourth Proportional to 1,633.69, 2,253.28 and 1,066.65

Step by Step Solution

1. Step 1: Write the proportion equation
   1,633.69 : 2,253.28 = 1,066.65 : x
2. Step 2: Convert to fraction form
   1,633.69/2,253.28 = 1,066.65/x
3. Step 3: Cross multiply
   1,633.69x = 2,253.28 × 1,066.65
4. Step 4: Simplify right side
   1,633.69x = 2,403,455.78
5. Step 5: Solve for x
   x = 2,403,455.78/1,633.69
6. Step 6: Final answer
   x = 1,471.18