Finding the Fourth Proportional to 3,345.30, 5,016.60 and 1,152.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,345.30 : 5,016.60 = 1,152.90 : x
2. Step 2: Convert to fraction form
   3,345.30/5,016.60 = 1,152.90/x
3. Step 3: Cross multiply
   3,345.30x = 5,016.60 × 1,152.90
4. Step 4: Simplify right side
   3,345.30x = 5,783,638.14
5. Step 5: Solve for x
   x = 5,783,638.14/3,345.30
6. Step 6: Final answer
   x = 1,728.88