Finding the Fourth Proportional to 1,720.06, 2,373.69 and 934.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,720.06 : 2,373.69 = 934.18 : x
2. Step 2: Convert to fraction form
   1,720.06/2,373.69 = 934.18/x
3. Step 3: Cross multiply
   1,720.06x = 2,373.69 × 934.18
4. Step 4: Simplify right side
   1,720.06x = 2,217,453.72
5. Step 5: Solve for x
   x = 2,217,453.72/1,720.06
6. Step 6: Final answer
   x = 1,289.17