Finding the Fourth Proportional to 1,355.03, 1,868.80 and 1,074.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355.03 : 1,868.80 = 1,074.82 : x
2. Step 2: Convert to fraction form
   1,355.03/1,868.80 = 1,074.82/x
3. Step 3: Cross multiply
   1,355.03x = 1,868.80 × 1,074.82
4. Step 4: Simplify right side
   1,355.03x = 2,008,625.55
5. Step 5: Solve for x
   x = 2,008,625.55/1,355.03
6. Step 6: Final answer
   x = 1,482.35