Finding the Fourth Proportional to 1,995.78, 2,754.16 and 1,111.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,995.78 : 2,754.16 = 1,111.53 : x
2. Step 2: Convert to fraction form
   1,995.78/2,754.16 = 1,111.53/x
3. Step 3: Cross multiply
   1,995.78x = 2,754.16 × 1,111.53
4. Step 4: Simplify right side
   1,995.78x = 3,061,328.69
5. Step 5: Solve for x
   x = 3,061,328.69/1,995.78
6. Step 6: Final answer
   x = 1,533.90