Finding the Fourth Proportional to 2,146.50, 2,961.72 and 1,262.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.50 : 2,961.72 = 1,262.40 : x
2. Step 2: Convert to fraction form
   2,146.50/2,961.72 = 1,262.40/x
3. Step 3: Cross multiply
   2,146.50x = 2,961.72 × 1,262.40
4. Step 4: Simplify right side
   2,146.50x = 3,738,875.33
5. Step 5: Solve for x
   x = 3,738,875.33/2,146.50
6. Step 6: Final answer
   x = 1,741.85