Finding the Fourth Proportional to 2,011.83, 2,774.96 and 1,638.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.83 : 2,774.96 = 1,638.82 : x
2. Step 2: Convert to fraction form
   2,011.83/2,774.96 = 1,638.82/x
3. Step 3: Cross multiply
   2,011.83x = 2,774.96 × 1,638.82
4. Step 4: Simplify right side
   2,011.83x = 4,547,651.75
5. Step 5: Solve for x
   x = 4,547,651.75/2,011.83
6. Step 6: Final answer
   x = 2,260.46