Finding the Fourth Proportional to 1,941.55, 2,679.41 and 1,145.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,941.55 : 2,679.41 = 1,145.42 : x
2. Step 2: Convert to fraction form
   1,941.55/2,679.41 = 1,145.42/x
3. Step 3: Cross multiply
   1,941.55x = 2,679.41 × 1,145.42
4. Step 4: Simplify right side
   1,941.55x = 3,069,030.68
5. Step 5: Solve for x
   x = 3,069,030.68/1,941.55
6. Step 6: Final answer
   x = 1,580.71