Finding the Fourth Proportional to 1,855.82, 2,560.95 and 1,069.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,855.82 : 2,560.95 = 1,069.72 : x
2. Step 2: Convert to fraction form
   1,855.82/2,560.95 = 1,069.72/x
3. Step 3: Cross multiply
   1,855.82x = 2,560.95 × 1,069.72
4. Step 4: Simplify right side
   1,855.82x = 2,739,493.03
5. Step 5: Solve for x
   x = 2,739,493.03/1,855.82
6. Step 6: Final answer
   x = 1,476.16