Finding the Fourth Proportional to 1,770.16, 2,648.94 and 1,076.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.16 : 2,648.94 = 1,076.56 : x
2. Step 2: Convert to fraction form
   1,770.16/2,648.94 = 1,076.56/x
3. Step 3: Cross multiply
   1,770.16x = 2,648.94 × 1,076.56
4. Step 4: Simplify right side
   1,770.16x = 2,851,742.85
5. Step 5: Solve for x
   x = 2,851,742.85/1,770.16
6. Step 6: Final answer
   x = 1,611.01