Finding the Fourth Proportional to 1,720.00, 2,372.71 and 1,089.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,720.00 : 2,372.71 = 1,089.46 : x
2. Step 2: Convert to fraction form
   1,720.00/2,372.71 = 1,089.46/x
3. Step 3: Cross multiply
   1,720.00x = 2,372.71 × 1,089.46
4. Step 4: Simplify right side
   1,720.00x = 2,584,955.33
5. Step 5: Solve for x
   x = 2,584,955.33/1,720.00
6. Step 6: Final answer
   x = 1,502.89