Finding the Fourth Proportional to 2,162.64, 2,983.14 and 1,637.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.64 : 2,983.14 = 1,637.76 : x
2. Step 2: Convert to fraction form
   2,162.64/2,983.14 = 1,637.76/x
3. Step 3: Cross multiply
   2,162.64x = 2,983.14 × 1,637.76
4. Step 4: Simplify right side
   2,162.64x = 4,885,667.37
5. Step 5: Solve for x
   x = 4,885,667.37/2,162.64
6. Step 6: Final answer
   x = 2,259.12