Finding the Fourth Proportional to 3,484.74, 5,227.21 and 1,019.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,484.74 : 5,227.21 = 1,019.30 : x
2. Step 2: Convert to fraction form
   3,484.74/5,227.21 = 1,019.30/x
3. Step 3: Cross multiply
   3,484.74x = 5,227.21 × 1,019.30
4. Step 4: Simplify right side
   3,484.74x = 5,328,095.15
5. Step 5: Solve for x
   x = 5,328,095.15/3,484.74
6. Step 6: Final answer
   x = 1,528.98