Finding the Fourth Proportional to 2,017.91, 2,784.90 and 1,179.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.91 : 2,784.90 = 1,179.02 : x
2. Step 2: Convert to fraction form
   2,017.91/2,784.90 = 1,179.02/x
3. Step 3: Cross multiply
   2,017.91x = 2,784.90 × 1,179.02
4. Step 4: Simplify right side
   2,017.91x = 3,283,438.87
5. Step 5: Solve for x
   x = 3,283,438.87/2,017.91
6. Step 6: Final answer
   x = 1,627.15