Finding the Fourth Proportional to 3,019.61, 4,528.71 and 1,071.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,019.61 : 4,528.71 = 1,071.83 : x
2. Step 2: Convert to fraction form
   3,019.61/4,528.71 = 1,071.83/x
3. Step 3: Cross multiply
   3,019.61x = 4,528.71 × 1,071.83
4. Step 4: Simplify right side
   3,019.61x = 4,854,018.56
5. Step 5: Solve for x
   x = 4,854,018.56/3,019.61
6. Step 6: Final answer
   x = 1,607.50