Finding the Fourth Proportional to 1,346.59, 1,856.56 and 873.66

Step by Step Solution

1. Step 1: Write the proportion equation
   1,346.59 : 1,856.56 = 873.66 : x
2. Step 2: Convert to fraction form
   1,346.59/1,856.56 = 873.66/x
3. Step 3: Cross multiply
   1,346.59x = 1,856.56 × 873.66
4. Step 4: Simplify right side
   1,346.59x = 1,622,002.21
5. Step 5: Solve for x
   x = 1,622,002.21/1,346.59
6. Step 6: Final answer
   x = 1,204.53