Finding the Fourth Proportional to 3,019.10, 4,528.79 and 1,071.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,019.10 : 4,528.79 = 1,071.50 : x
2. Step 2: Convert to fraction form
   3,019.10/4,528.79 = 1,071.50/x
3. Step 3: Cross multiply
   3,019.10x = 4,528.79 × 1,071.50
4. Step 4: Simplify right side
   3,019.10x = 4,852,598.49
5. Step 5: Solve for x
   x = 4,852,598.49/3,019.10
6. Step 6: Final answer
   x = 1,607.30