Finding the Fourth Proportional to 2,176.60, 3,003.72 and 1,181.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,176.60 : 3,003.72 = 1,181.90 : x
2. Step 2: Convert to fraction form
   2,176.60/3,003.72 = 1,181.90/x
3. Step 3: Cross multiply
   2,176.60x = 3,003.72 × 1,181.90
4. Step 4: Simplify right side
   2,176.60x = 3,550,096.67
5. Step 5: Solve for x
   x = 3,550,096.67/2,176.60
6. Step 6: Final answer
   x = 1,631.03