Finding the Fourth Proportional to 2,070.92, 3,100.86 and 1,742.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070.92 : 3,100.86 = 1,742.90 : x
2. Step 2: Convert to fraction form
   2,070.92/3,100.86 = 1,742.90/x
3. Step 3: Cross multiply
   2,070.92x = 3,100.86 × 1,742.90
4. Step 4: Simplify right side
   2,070.92x = 5,404,488.89
5. Step 5: Solve for x
   x = 5,404,488.89/2,070.92
6. Step 6: Final answer
   x = 2,609.70