Finding the Fourth Proportional to 1,573.74, 2,359.20 and 792.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,573.74 : 2,359.20 = 792.72 : x
2. Step 2: Convert to fraction form
   1,573.74/2,359.20 = 792.72/x
3. Step 3: Cross multiply
   1,573.74x = 2,359.20 × 792.72
4. Step 4: Simplify right side
   1,573.74x = 1,870,185.02
5. Step 5: Solve for x
   x = 1,870,185.02/1,573.74
6. Step 6: Final answer
   x = 1,188.37