Finding the Fourth Proportional to 3,100.82, 4,279.20 and 1,703.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,100.82 : 4,279.20 = 1,703.60 : x
2. Step 2: Convert to fraction form
   3,100.82/4,279.20 = 1,703.60/x
3. Step 3: Cross multiply
   3,100.82x = 4,279.20 × 1,703.60
4. Step 4: Simplify right side
   3,100.82x = 7,290,045.12
5. Step 5: Solve for x
   x = 7,290,045.12/3,100.82
6. Step 6: Final answer
   x = 2,351.01