Finding the Fourth Proportional to 2,050.86, 3,070.01 and 1,657.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,050.86 : 3,070.01 = 1,657.20 : x
2. Step 2: Convert to fraction form
   2,050.86/3,070.01 = 1,657.20/x
3. Step 3: Cross multiply
   2,050.86x = 3,070.01 × 1,657.20
4. Step 4: Simplify right side
   2,050.86x = 5,087,624.72
5. Step 5: Solve for x
   x = 5,087,624.72/2,050.86
6. Step 6: Final answer
   x = 2,480.73