Finding the Fourth Proportional to 2,066.50, 2,851.78 and 1,135

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.50 : 2,851.78 = 1,135 : x
2. Step 2: Convert to fraction form
   2,066.50/2,851.78 = 1,135/x
3. Step 3: Cross multiply
   2,066.50x = 2,851.78 × 1,135
4. Step 4: Simplify right side
   2,066.50x = 3,236,770.30
5. Step 5: Solve for x
   x = 3,236,770.30/2,066.50
6. Step 6: Final answer
   x = 1,566.31