Finding the Fourth Proportional to 3,642.57, 5,026.50 and 2,151

Step by Step Solution

1. Step 1: Write the proportion equation
   3,642.57 : 5,026.50 = 2,151 : x
2. Step 2: Convert to fraction form
   3,642.57/5,026.50 = 2,151/x
3. Step 3: Cross multiply
   3,642.57x = 5,026.50 × 2,151
4. Step 4: Simplify right side
   3,642.57x = 10,812,001.50
5. Step 5: Solve for x
   x = 10,812,001.50/3,642.57
6. Step 6: Final answer
   x = 2,968.23