Finding the Fourth Proportional to 1,500.50, 2,070.69 and 879.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,500.50 : 2,070.69 = 879.86 : x
2. Step 2: Convert to fraction form
   1,500.50/2,070.69 = 879.86/x
3. Step 3: Cross multiply
   1,500.50x = 2,070.69 × 879.86
4. Step 4: Simplify right side
   1,500.50x = 1,821,917.30
5. Step 5: Solve for x
   x = 1,821,917.30/1,500.50
6. Step 6: Final answer
   x = 1,214.21