Finding the Fourth Proportional to 1,404.23, 2,106.77 and 994.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.23 : 2,106.77 = 994.16 : x
2. Step 2: Convert to fraction form
   1,404.23/2,106.77 = 994.16/x
3. Step 3: Cross multiply
   1,404.23x = 2,106.77 × 994.16
4. Step 4: Simplify right side
   1,404.23x = 2,094,450.96
5. Step 5: Solve for x
   x = 2,094,450.96/1,404.23
6. Step 6: Final answer
   x = 1,491.54