Finding the Fourth Proportional to 2,971.61, 4,457.46 and 1,123.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,971.61 : 4,457.46 = 1,123.59 : x
2. Step 2: Convert to fraction form
   2,971.61/4,457.46 = 1,123.59/x
3. Step 3: Cross multiply
   2,971.61x = 4,457.46 × 1,123.59
4. Step 4: Simplify right side
   2,971.61x = 5,008,357.48
5. Step 5: Solve for x
   x = 5,008,357.48/2,971.61
6. Step 6: Final answer
   x = 1,685.40