Finding the Fourth Proportional to 2,010.21, 3,012.88 and 1,035.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,010.21 : 3,012.88 = 1,035.78 : x
2. Step 2: Convert to fraction form
   2,010.21/3,012.88 = 1,035.78/x
3. Step 3: Cross multiply
   2,010.21x = 3,012.88 × 1,035.78
4. Step 4: Simplify right side
   2,010.21x = 3,120,680.85
5. Step 5: Solve for x
   x = 3,120,680.85/2,010.21
6. Step 6: Final answer
   x = 1,552.42