Finding the Fourth Proportional to 1,927.89, 2,661.30 and 1,182.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,927.89 : 2,661.30 = 1,182.15 : x
2. Step 2: Convert to fraction form
   1,927.89/2,661.30 = 1,182.15/x
3. Step 3: Cross multiply
   1,927.89x = 2,661.30 × 1,182.15
4. Step 4: Simplify right side
   1,927.89x = 3,146,055.80
5. Step 5: Solve for x
   x = 3,146,055.80/1,927.89
6. Step 6: Final answer
   x = 1,631.86