Finding the Fourth Proportional to 1,045.56, 1,567.94 and 558.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.56 : 1,567.94 = 558.34 : x
2. Step 2: Convert to fraction form
   1,045.56/1,567.94 = 558.34/x
3. Step 3: Cross multiply
   1,045.56x = 1,567.94 × 558.34
4. Step 4: Simplify right side
   1,045.56x = 875,443.62
5. Step 5: Solve for x
   x = 875,443.62/1,045.56
6. Step 6: Final answer
   x = 837.30