Finding the Fourth Proportional to 1,095.74, 1,639.35 and 1,003.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.74 : 1,639.35 = 1,003.81 : x
2. Step 2: Convert to fraction form
   1,095.74/1,639.35 = 1,003.81/x
3. Step 3: Cross multiply
   1,095.74x = 1,639.35 × 1,003.81
4. Step 4: Simplify right side
   1,095.74x = 1,645,595.92
5. Step 5: Solve for x
   x = 1,645,595.92/1,095.74
6. Step 6: Final answer
   x = 1,501.81