Finding the Fourth Proportional to 1,919.58, 2,877.68 and 1,096.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,919.58 : 2,877.68 = 1,096.72 : x
2. Step 2: Convert to fraction form
   1,919.58/2,877.68 = 1,096.72/x
3. Step 3: Cross multiply
   1,919.58x = 2,877.68 × 1,096.72
4. Step 4: Simplify right side
   1,919.58x = 3,156,009.21
5. Step 5: Solve for x
   x = 3,156,009.21/1,919.58
6. Step 6: Final answer
   x = 1,644.11