Finding the Fourth Proportional to 3,718.51, 5,131.35 and 2,146.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,718.51 : 5,131.35 = 2,146.50 : x
2. Step 2: Convert to fraction form
   3,718.51/5,131.35 = 2,146.50/x
3. Step 3: Cross multiply
   3,718.51x = 5,131.35 × 2,146.50
4. Step 4: Simplify right side
   3,718.51x = 11,014,442.78
5. Step 5: Solve for x
   x = 11,014,442.78/3,718.51
6. Step 6: Final answer
   x = 2,962.06