Finding the Fourth Proportional to 1,100.68, 1,515.60 and 1,076.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.68 : 1,515.60 = 1,076.38 : x
2. Step 2: Convert to fraction form
   1,100.68/1,515.60 = 1,076.38/x
3. Step 3: Cross multiply
   1,100.68x = 1,515.60 × 1,076.38
4. Step 4: Simplify right side
   1,100.68x = 1,631,361.53
5. Step 5: Solve for x
   x = 1,631,361.53/1,100.68
6. Step 6: Final answer
   x = 1,482.14