Finding the Fourth Proportional to 2,071.30, 3,108.96 and 976.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,071.30 : 3,108.96 = 976.42 : x
2. Step 2: Convert to fraction form
   2,071.30/3,108.96 = 976.42/x
3. Step 3: Cross multiply
   2,071.30x = 3,108.96 × 976.42
4. Step 4: Simplify right side
   2,071.30x = 3,035,650.72
5. Step 5: Solve for x
   x = 3,035,650.72/2,071.30
6. Step 6: Final answer
   x = 1,465.58