Finding the Fourth Proportional to 1,932.77, 2,667.45 and 1,186.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,932.77 : 2,667.45 = 1,186.47 : x
2. Step 2: Convert to fraction form
   1,932.77/2,667.45 = 1,186.47/x
3. Step 3: Cross multiply
   1,932.77x = 2,667.45 × 1,186.47
4. Step 4: Simplify right side
   1,932.77x = 3,164,849.40
5. Step 5: Solve for x
   x = 3,164,849.40/1,932.77
6. Step 6: Final answer
   x = 1,637.47