Finding the Fourth Proportional to 1,842.21, 2,541.28 and 1,142.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,842.21 : 2,541.28 = 1,142.37 : x
2. Step 2: Convert to fraction form
   1,842.21/2,541.28 = 1,142.37/x
3. Step 3: Cross multiply
   1,842.21x = 2,541.28 × 1,142.37
4. Step 4: Simplify right side
   1,842.21x = 2,903,082.03
5. Step 5: Solve for x
   x = 2,903,082.03/1,842.21
6. Step 6: Final answer
   x = 1,575.87