Finding the Fourth Proportional to 1,128.15, 1,692.50 and 737.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,128.15 : 1,692.50 = 737.73 : x
2. Step 2: Convert to fraction form
   1,128.15/1,692.50 = 737.73/x
3. Step 3: Cross multiply
   1,128.15x = 1,692.50 × 737.73
4. Step 4: Simplify right side
   1,128.15x = 1,248,604.34
5. Step 5: Solve for x
   x = 1,248,604.34/1,128.15
6. Step 6: Final answer
   x = 1,106.77