Finding the Fourth Proportional to 1,967.48, 2,713.85 and 1,407.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,967.48 : 2,713.85 = 1,407.77 : x
2. Step 2: Convert to fraction form
   1,967.48/2,713.85 = 1,407.77/x
3. Step 3: Cross multiply
   1,967.48x = 2,713.85 × 1,407.77
4. Step 4: Simplify right side
   1,967.48x = 3,820,456.01
5. Step 5: Solve for x
   x = 3,820,456.01/1,967.48
6. Step 6: Final answer
   x = 1,941.81