Finding the Fourth Proportional to 1,191.99, 1,785.76 and 1,063.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191.99 : 1,785.76 = 1,063.30 : x
2. Step 2: Convert to fraction form
   1,191.99/1,785.76 = 1,063.30/x
3. Step 3: Cross multiply
   1,191.99x = 1,785.76 × 1,063.30
4. Step 4: Simplify right side
   1,191.99x = 1,898,798.61
5. Step 5: Solve for x
   x = 1,898,798.61/1,191.99
6. Step 6: Final answer
   x = 1,592.97