Finding the Fourth Proportional to 2,148.06, 2,964.42 and 1,681.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,148.06 : 2,964.42 = 1,681.50 : x
2. Step 2: Convert to fraction form
   2,148.06/2,964.42 = 1,681.50/x
3. Step 3: Cross multiply
   2,148.06x = 2,964.42 × 1,681.50
4. Step 4: Simplify right side
   2,148.06x = 4,984,672.23
5. Step 5: Solve for x
   x = 4,984,672.23/2,148.06
6. Step 6: Final answer
   x = 2,320.55