Finding the Fourth Proportional to 2,064.30, 3,095.58 and 877.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,064.30 : 3,095.58 = 877.86 : x
2. Step 2: Convert to fraction form
   2,064.30/3,095.58 = 877.86/x
3. Step 3: Cross multiply
   2,064.30x = 3,095.58 × 877.86
4. Step 4: Simplify right side
   2,064.30x = 2,717,485.86
5. Step 5: Solve for x
   x = 2,717,485.86/2,064.30
6. Step 6: Final answer
   x = 1,316.42