Finding the Fourth Proportional to 2,961.86, 4,087.53 and 1,783.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,961.86 : 4,087.53 = 1,783.31 : x
2. Step 2: Convert to fraction form
   2,961.86/4,087.53 = 1,783.31/x
3. Step 3: Cross multiply
   2,961.86x = 4,087.53 × 1,783.31
4. Step 4: Simplify right side
   2,961.86x = 7,289,312.69
5. Step 5: Solve for x
   x = 7,289,312.69/2,961.86
6. Step 6: Final answer
   x = 2,461.06