Finding the Fourth Proportional to 2,073.55, 3,109.64 and 903.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,073.55 : 3,109.64 = 903.50 : x
2. Step 2: Convert to fraction form
   2,073.55/3,109.64 = 903.50/x
3. Step 3: Cross multiply
   2,073.55x = 3,109.64 × 903.50
4. Step 4: Simplify right side
   2,073.55x = 2,809,573.91
5. Step 5: Solve for x
   x = 2,809,573.91/2,073.55
6. Step 6: Final answer
   x = 1,354.96