Finding the Fourth Proportional to 6,875.86, 10,312.57 and 1,945.39

Step by Step Solution

1. Step 1: Write the proportion equation
   6,875.86 : 10,312.57 = 1,945.39 : x
2. Step 2: Convert to fraction form
   6,875.86/10,312.57 = 1,945.39/x
3. Step 3: Cross multiply
   6,875.86x = 10,312.57 × 1,945.39
4. Step 4: Simplify right side
   6,875.86x = 20,061,970.55
5. Step 5: Solve for x
   x = 20,061,970.55/6,875.86
6. Step 6: Final answer
   x = 2,917.74