Finding the Fourth Proportional to 1,772.34, 2,445.83 and 986.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,772.34 : 2,445.83 = 986.37 : x
2. Step 2: Convert to fraction form
   1,772.34/2,445.83 = 986.37/x
3. Step 3: Cross multiply
   1,772.34x = 2,445.83 × 986.37
4. Step 4: Simplify right side
   1,772.34x = 2,412,493.34
5. Step 5: Solve for x
   x = 2,412,493.34/1,772.34
6. Step 6: Final answer
   x = 1,361.19