Finding the Fourth Proportional to 2,083.32, 2,871.90 and 1,640.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.32 : 2,871.90 = 1,640.34 : x
2. Step 2: Convert to fraction form
   2,083.32/2,871.90 = 1,640.34/x
3. Step 3: Cross multiply
   2,083.32x = 2,871.90 × 1,640.34
4. Step 4: Simplify right side
   2,083.32x = 4,710,892.45
5. Step 5: Solve for x
   x = 4,710,892.45/2,083.32
6. Step 6: Final answer
   x = 2,261.24