Finding the Fourth Proportional to 1,642.74, 2,461.23 and 1,382.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,642.74 : 2,461.23 = 1,382.46 : x
2. Step 2: Convert to fraction form
   1,642.74/2,461.23 = 1,382.46/x
3. Step 3: Cross multiply
   1,642.74x = 2,461.23 × 1,382.46
4. Step 4: Simplify right side
   1,642.74x = 3,402,552.03
5. Step 5: Solve for x
   x = 3,402,552.03/1,642.74
6. Step 6: Final answer
   x = 2,071.27