Finding the Fourth Proportional to 1,378.84, 1,903.14 and 937.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378.84 : 1,903.14 = 937.48 : x
2. Step 2: Convert to fraction form
   1,378.84/1,903.14 = 937.48/x
3. Step 3: Cross multiply
   1,378.84x = 1,903.14 × 937.48
4. Step 4: Simplify right side
   1,378.84x = 1,784,155.69
5. Step 5: Solve for x
   x = 1,784,155.69/1,378.84
6. Step 6: Final answer
   x = 1,293.95