Finding the Fourth Proportional to 1,066.88, 1,470.96 and 693.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.88 : 1,470.96 = 693.32 : x
2. Step 2: Convert to fraction form
   1,066.88/1,470.96 = 693.32/x
3. Step 3: Cross multiply
   1,066.88x = 1,470.96 × 693.32
4. Step 4: Simplify right side
   1,066.88x = 1,019,845.99
5. Step 5: Solve for x
   x = 1,019,845.99/1,066.88
6. Step 6: Final answer
   x = 955.91