Finding the Fourth Proportional to 1,492.10, 2,058.56 and 902.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492.10 : 2,058.56 = 902.42 : x
2. Step 2: Convert to fraction form
   1,492.10/2,058.56 = 902.42/x
3. Step 3: Cross multiply
   1,492.10x = 2,058.56 × 902.42
4. Step 4: Simplify right side
   1,492.10x = 1,857,685.72
5. Step 5: Solve for x
   x = 1,857,685.72/1,492.10
6. Step 6: Final answer
   x = 1,245.01