Finding the Fourth Proportional to 1,380.42, 1,903.98 and 937.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380.42 : 1,903.98 = 937.53 : x
2. Step 2: Convert to fraction form
   1,380.42/1,903.98 = 937.53/x
3. Step 3: Cross multiply
   1,380.42x = 1,903.98 × 937.53
4. Step 4: Simplify right side
   1,380.42x = 1,785,038.37
5. Step 5: Solve for x
   x = 1,785,038.37/1,380.42
6. Step 6: Final answer
   x = 1,293.11