Finding the Fourth Proportional to 1,731.63, 2,384.79 and 1,620.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,731.63 : 2,384.79 = 1,620.46 : x
2. Step 2: Convert to fraction form
   1,731.63/2,384.79 = 1,620.46/x
3. Step 3: Cross multiply
   1,731.63x = 2,384.79 × 1,620.46
4. Step 4: Simplify right side
   1,731.63x = 3,864,449.41
5. Step 5: Solve for x
   x = 3,864,449.41/1,731.63
6. Step 6: Final answer
   x = 2,231.69