Finding the Fourth Proportional to 2,019.89, 3,029.50 and 558.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,019.89 : 3,029.50 = 558.70 : x
2. Step 2: Convert to fraction form
   2,019.89/3,029.50 = 558.70/x
3. Step 3: Cross multiply
   2,019.89x = 3,029.50 × 558.70
4. Step 4: Simplify right side
   2,019.89x = 1,692,588.67
5. Step 5: Solve for x
   x = 1,692,588.67/2,019.89
6. Step 6: Final answer
   x = 837.96