Finding the Fourth Proportional to 2,278.18, 3,143.73 and 1,346.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,278.18 : 3,143.73 = 1,346.50 : x
2. Step 2: Convert to fraction form
   2,278.18/3,143.73 = 1,346.50/x
3. Step 3: Cross multiply
   2,278.18x = 3,143.73 × 1,346.50
4. Step 4: Simplify right side
   2,278.18x = 4,233,032.45
5. Step 5: Solve for x
   x = 4,233,032.45/2,278.18
6. Step 6: Final answer
   x = 1,858.08