Finding the Fourth Proportional to 1,191.96, 1,790.82 and 1,053.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,191.96 : 1,790.82 = 1,053.72 : x
2. Step 2: Convert to fraction form
   1,191.96/1,790.82 = 1,053.72/x
3. Step 3: Cross multiply
   1,191.96x = 1,790.82 × 1,053.72
4. Step 4: Simplify right side
   1,191.96x = 1,887,022.85
5. Step 5: Solve for x
   x = 1,887,022.85/1,191.96
6. Step 6: Final answer
   x = 1,583.13