Finding the Fourth Proportional to 3,345.70, 5,017.59 and 1,397.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,345.70 : 5,017.59 = 1,397.50 : x
2. Step 2: Convert to fraction form
   3,345.70/5,017.59 = 1,397.50/x
3. Step 3: Cross multiply
   3,345.70x = 5,017.59 × 1,397.50
4. Step 4: Simplify right side
   3,345.70x = 7,012,082.03
5. Step 5: Solve for x
   x = 7,012,082.03/3,345.70
6. Step 6: Final answer
   x = 2,095.85