Finding the Fourth Proportional to 1,343.38, 1,853.86 and 877.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,343.38 : 1,853.86 = 877.62 : x
2. Step 2: Convert to fraction form
   1,343.38/1,853.86 = 877.62/x
3. Step 3: Cross multiply
   1,343.38x = 1,853.86 × 877.62
4. Step 4: Simplify right side
   1,343.38x = 1,626,984.61
5. Step 5: Solve for x
   x = 1,626,984.61/1,343.38
6. Step 6: Final answer
   x = 1,211.11