Finding the Fourth Proportional to 2,657.34, 3,984.51 and 1,271.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,657.34 : 3,984.51 = 1,271.01 : x
2. Step 2: Convert to fraction form
   2,657.34/3,984.51 = 1,271.01/x
3. Step 3: Cross multiply
   2,657.34x = 3,984.51 × 1,271.01
4. Step 4: Simplify right side
   2,657.34x = 5,064,352.06
5. Step 5: Solve for x
   x = 5,064,352.06/2,657.34
6. Step 6: Final answer
   x = 1,905.80