Finding the Fourth Proportional to 1,380.03, 1,902.92 and 937.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380.03 : 1,902.92 = 937.16 : x
2. Step 2: Convert to fraction form
   1,380.03/1,902.92 = 937.16/x
3. Step 3: Cross multiply
   1,380.03x = 1,902.92 × 937.16
4. Step 4: Simplify right side
   1,380.03x = 1,783,340.51
5. Step 5: Solve for x
   x = 1,783,340.51/1,380.03
6. Step 6: Final answer
   x = 1,292.25