Finding the Fourth Proportional to 2,663.34, 3,994.39 and 1,019.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,663.34 : 3,994.39 = 1,019.04 : x
2. Step 2: Convert to fraction form
   2,663.34/3,994.39 = 1,019.04/x
3. Step 3: Cross multiply
   2,663.34x = 3,994.39 × 1,019.04
4. Step 4: Simplify right side
   2,663.34x = 4,070,443.19
5. Step 5: Solve for x
   x = 4,070,443.19/2,663.34
6. Step 6: Final answer
   x = 1,528.32