Finding the Fourth Proportional to 2,145.82, 2,961 and 1,348.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145.82 : 2,961 = 1,348.96 : x
2. Step 2: Convert to fraction form
   2,145.82/2,961 = 1,348.96/x
3. Step 3: Cross multiply
   2,145.82x = 2,961 × 1,348.96
4. Step 4: Simplify right side
   2,145.82x = 3,994,270.56
5. Step 5: Solve for x
   x = 3,994,270.56/2,145.82
6. Step 6: Final answer
   x = 1,861.42