Finding the Fourth Proportional to 1,045.83, 1,569.12 and 396.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.83 : 1,569.12 = 396.56 : x
2. Step 2: Convert to fraction form
   1,045.83/1,569.12 = 396.56/x
3. Step 3: Cross multiply
   1,045.83x = 1,569.12 × 396.56
4. Step 4: Simplify right side
   1,045.83x = 622,254.89
5. Step 5: Solve for x
   x = 622,254.89/1,045.83
6. Step 6: Final answer
   x = 594.99