Finding the Fourth Proportional to 1,343.29, 1,853.27 and 877.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.29 : 1,853.27 = 877.81 : x
2. Step 2: Convert to fraction form
   1,343.29/1,853.27 = 877.81/x
3. Step 3: Cross multiply
   1,343.29x = 1,853.27 × 877.81
4. Step 4: Simplify right side
   1,343.29x = 1,626,814.55
5. Step 5: Solve for x
   x = 1,626,814.55/1,343.29
6. Step 6: Final answer
   x = 1,211.07