Finding the Fourth Proportional to 3,422.04, 5,131.96 and 1,113

Step by Step Solution

1. Step 1: Write the proportion equation
   3,422.04 : 5,131.96 = 1,113 : x
2. Step 2: Convert to fraction form
   3,422.04/5,131.96 = 1,113/x
3. Step 3: Cross multiply
   3,422.04x = 5,131.96 × 1,113
4. Step 4: Simplify right side
   3,422.04x = 5,711,871.48
5. Step 5: Solve for x
   x = 5,711,871.48/3,422.04
6. Step 6: Final answer
   x = 1,669.14