Finding the Fourth Proportional to 1,492.32, 2,239.68 and 1,200.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492.32 : 2,239.68 = 1,200.72 : x
2. Step 2: Convert to fraction form
   1,492.32/2,239.68 = 1,200.72/x
3. Step 3: Cross multiply
   1,492.32x = 2,239.68 × 1,200.72
4. Step 4: Simplify right side
   1,492.32x = 2,689,228.57
5. Step 5: Solve for x
   x = 2,689,228.57/1,492.32
6. Step 6: Final answer
   x = 1,802.05