Finding the Fourth Proportional to 2,070.86, 3,104.78 and 974.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070.86 : 3,104.78 = 974.61 : x
2. Step 2: Convert to fraction form
   2,070.86/3,104.78 = 974.61/x
3. Step 3: Cross multiply
   2,070.86x = 3,104.78 × 974.61
4. Step 4: Simplify right side
   2,070.86x = 3,025,944.76
5. Step 5: Solve for x
   x = 3,025,944.76/2,070.86
6. Step 6: Final answer
   x = 1,461.21