Finding the Fourth Proportional to 3,345.98, 5,019.03 and 880.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,345.98 : 5,019.03 = 880.71 : x
2. Step 2: Convert to fraction form
   3,345.98/5,019.03 = 880.71/x
3. Step 3: Cross multiply
   3,345.98x = 5,019.03 × 880.71
4. Step 4: Simplify right side
   3,345.98x = 4,420,312.11
5. Step 5: Solve for x
   x = 4,420,312.11/3,345.98
6. Step 6: Final answer
   x = 1,321.08