Finding the Fourth Proportional to 2,061.18, 2,842.40 and 1,890.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.18 : 2,842.40 = 1,890.43 : x
2. Step 2: Convert to fraction form
   2,061.18/2,842.40 = 1,890.43/x
3. Step 3: Cross multiply
   2,061.18x = 2,842.40 × 1,890.43
4. Step 4: Simplify right side
   2,061.18x = 5,373,358.23
5. Step 5: Solve for x
   x = 5,373,358.23/2,061.18
6. Step 6: Final answer
   x = 2,606.93