Finding the Fourth Proportional to 1,376.45, 1,900.37 and 984.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,376.45 : 1,900.37 = 984.77 : x
2. Step 2: Convert to fraction form
   1,376.45/1,900.37 = 984.77/x
3. Step 3: Cross multiply
   1,376.45x = 1,900.37 × 984.77
4. Step 4: Simplify right side
   1,376.45x = 1,871,422.44
5. Step 5: Solve for x
   x = 1,871,422.44/1,376.45
6. Step 6: Final answer
   x = 1,359.60