Finding the Fourth Proportional to 1,402.34, 2,104.22 and 994.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.34 : 2,104.22 = 994.10 : x
2. Step 2: Convert to fraction form
   1,402.34/2,104.22 = 994.10/x
3. Step 3: Cross multiply
   1,402.34x = 2,104.22 × 994.10
4. Step 4: Simplify right side
   1,402.34x = 2,091,797.07
5. Step 5: Solve for x
   x = 2,091,797.07/1,402.34
6. Step 6: Final answer
   x = 1,491.65