Finding the Fourth Proportional to 1,681.52, 2,315.67 and 1,676.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,681.52 : 2,315.67 = 1,676.05 : x
2. Step 2: Convert to fraction form
   1,681.52/2,315.67 = 1,676.05/x
3. Step 3: Cross multiply
   1,681.52x = 2,315.67 × 1,676.05
4. Step 4: Simplify right side
   1,681.52x = 3,881,184.49
5. Step 5: Solve for x
   x = 3,881,184.49/1,681.52
6. Step 6: Final answer
   x = 2,308.14