Finding the Fourth Proportional to 3,461.59, 5,191.21 and 1,120.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,461.59 : 5,191.21 = 1,120.96 : x
2. Step 2: Convert to fraction form
   3,461.59/5,191.21 = 1,120.96/x
3. Step 3: Cross multiply
   3,461.59x = 5,191.21 × 1,120.96
4. Step 4: Simplify right side
   3,461.59x = 5,819,111.15
5. Step 5: Solve for x
   x = 5,819,111.15/3,461.59
6. Step 6: Final answer
   x = 1,681.05