Finding the Fourth Proportional to 2,070.79, 2,861.79 and 1,697.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070.79 : 2,861.79 = 1,697.18 : x
2. Step 2: Convert to fraction form
   2,070.79/2,861.79 = 1,697.18/x
3. Step 3: Cross multiply
   2,070.79x = 2,861.79 × 1,697.18
4. Step 4: Simplify right side
   2,070.79x = 4,856,972.75
5. Step 5: Solve for x
   x = 4,856,972.75/2,070.79
6. Step 6: Final answer
   x = 2,345.47