Finding the Fourth Proportional to 2,503.17, 3,454.09 and 1,383.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,503.17 : 3,454.09 = 1,383.95 : x
2. Step 2: Convert to fraction form
   2,503.17/3,454.09 = 1,383.95/x
3. Step 3: Cross multiply
   2,503.17x = 3,454.09 × 1,383.95
4. Step 4: Simplify right side
   2,503.17x = 4,780,300.82
5. Step 5: Solve for x
   x = 4,780,300.82/2,503.17
6. Step 6: Final answer
   x = 1,909.70