Finding the Fourth Proportional to 1,670.82, 2,507.86 and 793.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,670.82 : 2,507.86 = 793.91 : x
2. Step 2: Convert to fraction form
   1,670.82/2,507.86 = 793.91/x
3. Step 3: Cross multiply
   1,670.82x = 2,507.86 × 793.91
4. Step 4: Simplify right side
   1,670.82x = 1,991,022.39
5. Step 5: Solve for x
   x = 1,991,022.39/1,670.82
6. Step 6: Final answer
   x = 1,191.65