Finding the Fourth Proportional to 3,643.57, 5,026.98 and 2,152.01

Step by Step Solution

1. Step 1: Write the proportion equation
   3,643.57 : 5,026.98 = 2,152.01 : x
2. Step 2: Convert to fraction form
   3,643.57/5,026.98 = 2,152.01/x
3. Step 3: Cross multiply
   3,643.57x = 5,026.98 × 2,152.01
4. Step 4: Simplify right side
   3,643.57x = 10,818,111.23
5. Step 5: Solve for x
   x = 10,818,111.23/3,643.57
6. Step 6: Final answer
   x = 2,969.10