Finding the Fourth Proportional to 2,059.10, 3,086.49 and 903.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,059.10 : 3,086.49 = 903.50 : x
2. Step 2: Convert to fraction form
   2,059.10/3,086.49 = 903.50/x
3. Step 3: Cross multiply
   2,059.10x = 3,086.49 × 903.50
4. Step 4: Simplify right side
   2,059.10x = 2,788,643.72
5. Step 5: Solve for x
   x = 2,788,643.72/2,059.10
6. Step 6: Final answer
   x = 1,354.30