Finding the Fourth Proportional to 1,811.98, 2,499.78 and 1,182.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,811.98 : 2,499.78 = 1,182.76 : x
2. Step 2: Convert to fraction form
   1,811.98/2,499.78 = 1,182.76/x
3. Step 3: Cross multiply
   1,811.98x = 2,499.78 × 1,182.76
4. Step 4: Simplify right side
   1,811.98x = 2,956,639.79
5. Step 5: Solve for x
   x = 2,956,639.79/1,811.98
6. Step 6: Final answer
   x = 1,631.72