Finding the Fourth Proportional to 2,985.76, 4,478.56 and 794.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,985.76 : 4,478.56 = 794.51 : x
2. Step 2: Convert to fraction form
   2,985.76/4,478.56 = 794.51/x
3. Step 3: Cross multiply
   2,985.76x = 4,478.56 × 794.51
4. Step 4: Simplify right side
   2,985.76x = 3,558,238.31
5. Step 5: Solve for x
   x = 3,558,238.31/2,985.76
6. Step 6: Final answer
   x = 1,191.74