Finding the Fourth Proportional to 1,066.40, 1,597.52 and 602.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,066.40 : 1,597.52 = 602.78 : x
2. Step 2: Convert to fraction form
   1,066.40/1,597.52 = 602.78/x
3. Step 3: Cross multiply
   1,066.40x = 1,597.52 × 602.78
4. Step 4: Simplify right side
   1,066.40x = 962,946.62
5. Step 5: Solve for x
   x = 962,946.62/1,066.40
6. Step 6: Final answer
   x = 902.99