Finding the Fourth Proportional to 1,437.67, 1,983.36 and 913.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.67 : 1,983.36 = 913.42 : x
2. Step 2: Convert to fraction form
   1,437.67/1,983.36 = 913.42/x
3. Step 3: Cross multiply
   1,437.67x = 1,983.36 × 913.42
4. Step 4: Simplify right side
   1,437.67x = 1,811,640.69
5. Step 5: Solve for x
   x = 1,811,640.69/1,437.67
6. Step 6: Final answer
   x = 1,260.12