Finding the Fourth Proportional to 1,886.75, 2,603.72 and 1,100.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,886.75 : 2,603.72 = 1,100.95 : x
2. Step 2: Convert to fraction form
   1,886.75/2,603.72 = 1,100.95/x
3. Step 3: Cross multiply
   1,886.75x = 2,603.72 × 1,100.95
4. Step 4: Simplify right side
   1,886.75x = 2,866,565.53
5. Step 5: Solve for x
   x = 2,866,565.53/1,886.75
6. Step 6: Final answer
   x = 1,519.31