Finding the Fourth Proportional to 1,437.03, 1,980.86 and 939.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.03 : 1,980.86 = 939.42 : x
2. Step 2: Convert to fraction form
   1,437.03/1,980.86 = 939.42/x
3. Step 3: Cross multiply
   1,437.03x = 1,980.86 × 939.42
4. Step 4: Simplify right side
   1,437.03x = 1,860,854.80
5. Step 5: Solve for x
   x = 1,860,854.80/1,437.03
6. Step 6: Final answer
   x = 1,294.93