Finding the Fourth Proportional to 1,492.16, 2,058.56 and 902.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492.16 : 2,058.56 = 902.56 : x
2. Step 2: Convert to fraction form
   1,492.16/2,058.56 = 902.56/x
3. Step 3: Cross multiply
   1,492.16x = 2,058.56 × 902.56
4. Step 4: Simplify right side
   1,492.16x = 1,857,973.91
5. Step 5: Solve for x
   x = 1,857,973.91/1,492.16
6. Step 6: Final answer
   x = 1,245.16