Finding the Fourth Proportional to 2,300.18, 3,442.07 and 2,145.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.18 : 3,442.07 = 2,145.74 : x
2. Step 2: Convert to fraction form
   2,300.18/3,442.07 = 2,145.74/x
3. Step 3: Cross multiply
   2,300.18x = 3,442.07 × 2,145.74
4. Step 4: Simplify right side
   2,300.18x = 7,385,775.44
5. Step 5: Solve for x
   x = 7,385,775.44/2,300.18
6. Step 6: Final answer
   x = 3,210.96