Finding the Fourth Proportional to 1,714.72, 2,572.31 and 790.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,714.72 : 2,572.31 = 790.49 : x
2. Step 2: Convert to fraction form
   1,714.72/2,572.31 = 790.49/x
3. Step 3: Cross multiply
   1,714.72x = 2,572.31 × 790.49
4. Step 4: Simplify right side
   1,714.72x = 2,033,386.32
5. Step 5: Solve for x
   x = 2,033,386.32/1,714.72
6. Step 6: Final answer
   x = 1,185.84