Finding the Fourth Proportional to 2,045.24, 2,820.90 and 1,298.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,045.24 : 2,820.90 = 1,298.56 : x
2. Step 2: Convert to fraction form
   2,045.24/2,820.90 = 1,298.56/x
3. Step 3: Cross multiply
   2,045.24x = 2,820.90 × 1,298.56
4. Step 4: Simplify right side
   2,045.24x = 3,663,107.90
5. Step 5: Solve for x
   x = 3,663,107.90/2,045.24
6. Step 6: Final answer
   x = 1,791.04