Finding the Fourth Proportional to 1,349.58, 1,862.81 and 877.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,349.58 : 1,862.81 = 877.49 : x
2. Step 2: Convert to fraction form
   1,349.58/1,862.81 = 877.49/x
3. Step 3: Cross multiply
   1,349.58x = 1,862.81 × 877.49
4. Step 4: Simplify right side
   1,349.58x = 1,634,583.45
5. Step 5: Solve for x
   x = 1,634,583.45/1,349.58
6. Step 6: Final answer
   x = 1,211.18