Finding the Fourth Proportional to 1,441.89, 2,160.96 and 1,094.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,441.89 : 2,160.96 = 1,094.20 : x
2. Step 2: Convert to fraction form
   1,441.89/2,160.96 = 1,094.20/x
3. Step 3: Cross multiply
   1,441.89x = 2,160.96 × 1,094.20
4. Step 4: Simplify right side
   1,441.89x = 2,364,522.43
5. Step 5: Solve for x
   x = 2,364,522.43/1,441.89
6. Step 6: Final answer
   x = 1,639.88