Finding the Fourth Proportional to 1,437.31, 1,984.40 and 995.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,437.31 : 1,984.40 = 995.05 : x
2. Step 2: Convert to fraction form
   1,437.31/1,984.40 = 995.05/x
3. Step 3: Cross multiply
   1,437.31x = 1,984.40 × 995.05
4. Step 4: Simplify right side
   1,437.31x = 1,974,577.22
5. Step 5: Solve for x
   x = 1,974,577.22/1,437.31
6. Step 6: Final answer
   x = 1,373.80