Finding the Fourth Proportional to 1,712.34, 2,566.69 and 889.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,712.34 : 2,566.69 = 889.79 : x
2. Step 2: Convert to fraction form
   1,712.34/2,566.69 = 889.79/x
3. Step 3: Cross multiply
   1,712.34x = 2,566.69 × 889.79
4. Step 4: Simplify right side
   1,712.34x = 2,283,800.04
5. Step 5: Solve for x
   x = 2,283,800.04/1,712.34
6. Step 6: Final answer
   x = 1,333.73