Finding the Fourth Proportional to 1,412.34, 1,949.71 and 993.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,412.34 : 1,949.71 = 993.05 : x
2. Step 2: Convert to fraction form
   1,412.34/1,949.71 = 993.05/x
3. Step 3: Cross multiply
   1,412.34x = 1,949.71 × 993.05
4. Step 4: Simplify right side
   1,412.34x = 1,936,165.63
5. Step 5: Solve for x
   x = 1,936,165.63/1,412.34
6. Step 6: Final answer
   x = 1,370.89