Finding the Fourth Proportional to 1,371.36, 1,892.82 and 874.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,371.36 : 1,892.82 = 874.56 : x
2. Step 2: Convert to fraction form
   1,371.36/1,892.82 = 874.56/x
3. Step 3: Cross multiply
   1,371.36x = 1,892.82 × 874.56
4. Step 4: Simplify right side
   1,371.36x = 1,655,384.66
5. Step 5: Solve for x
   x = 1,655,384.66/1,371.36
6. Step 6: Final answer
   x = 1,207.11