Finding the Fourth Proportional to 1,671.58, 2,503.72 and 1,183.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,671.58 : 2,503.72 = 1,183.15 : x
2. Step 2: Convert to fraction form
   1,671.58/2,503.72 = 1,183.15/x
3. Step 3: Cross multiply
   1,671.58x = 2,503.72 × 1,183.15
4. Step 4: Simplify right side
   1,671.58x = 2,962,267.10
5. Step 5: Solve for x
   x = 2,962,267.10/1,671.58
6. Step 6: Final answer
   x = 1,772.14