Finding the Fourth Proportional to 2,071.86, 3,105.06 and 1,521.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.86 : 3,105.06 = 1,521.48 : x
2. Step 2: Convert to fraction form
   2,071.86/3,105.06 = 1,521.48/x
3. Step 3: Cross multiply
   2,071.86x = 3,105.06 × 1,521.48
4. Step 4: Simplify right side
   2,071.86x = 4,724,286.69
5. Step 5: Solve for x
   x = 4,724,286.69/2,071.86
6. Step 6: Final answer
   x = 2,280.22