Finding the Fourth Proportional to 1,379.99, 1,905.93 and 937.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,379.99 : 1,905.93 = 937.13 : x
2. Step 2: Convert to fraction form
   1,379.99/1,905.93 = 937.13/x
3. Step 3: Cross multiply
   1,379.99x = 1,905.93 × 937.13
4. Step 4: Simplify right side
   1,379.99x = 1,786,094.65
5. Step 5: Solve for x
   x = 1,786,094.65/1,379.99
6. Step 6: Final answer
   x = 1,294.28