Finding the Fourth Proportional to 1,492.83, 2,238.12 and 842.67

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492.83 : 2,238.12 = 842.67 : x
2. Step 2: Convert to fraction form
   1,492.83/2,238.12 = 842.67/x
3. Step 3: Cross multiply
   1,492.83x = 2,238.12 × 842.67
4. Step 4: Simplify right side
   1,492.83x = 1,885,996.58
5. Step 5: Solve for x
   x = 1,885,996.58/1,492.83
6. Step 6: Final answer
   x = 1,263.37