Finding the Fourth Proportional to 2,971.37, 4,100.69 and 1,645.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,971.37 : 4,100.69 = 1,645.10 : x
2. Step 2: Convert to fraction form
   2,971.37/4,100.69 = 1,645.10/x
3. Step 3: Cross multiply
   2,971.37x = 4,100.69 × 1,645.10
4. Step 4: Simplify right side
   2,971.37x = 6,746,045.12
5. Step 5: Solve for x
   x = 6,746,045.12/2,971.37
6. Step 6: Final answer
   x = 2,270.35