Finding the Fourth Proportional to 1,409.52, 2,111.70 and 792.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.52 : 2,111.70 = 792.30 : x
2. Step 2: Convert to fraction form
   1,409.52/2,111.70 = 792.30/x
3. Step 3: Cross multiply
   1,409.52x = 2,111.70 × 792.30
4. Step 4: Simplify right side
   1,409.52x = 1,673,099.91
5. Step 5: Solve for x
   x = 1,673,099.91/1,409.52
6. Step 6: Final answer
   x = 1,187.00