Finding the Fourth Proportional to 2,098.76, 3,143.35 and 1,003.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.76 : 3,143.35 = 1,003.90 : x
2. Step 2: Convert to fraction form
   2,098.76/3,143.35 = 1,003.90/x
3. Step 3: Cross multiply
   2,098.76x = 3,143.35 × 1,003.90
4. Step 4: Simplify right side
   2,098.76x = 3,155,609.07
5. Step 5: Solve for x
   x = 3,155,609.07/2,098.76
6. Step 6: Final answer
   x = 1,503.56