Finding the Fourth Proportional to 1,902.58, 2,856.60 and 1,082.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,902.58 : 2,856.60 = 1,082.50 : x
2. Step 2: Convert to fraction form
   1,902.58/2,856.60 = 1,082.50/x
3. Step 3: Cross multiply
   1,902.58x = 2,856.60 × 1,082.50
4. Step 4: Simplify right side
   1,902.58x = 3,092,269.50
5. Step 5: Solve for x
   x = 3,092,269.50/1,902.58
6. Step 6: Final answer
   x = 1,625.30