Finding the Fourth Proportional to 3,541.89, 5,312.43 and 945.03

Step by Step Solution

1. Step 1: Write the proportion equation
   3,541.89 : 5,312.43 = 945.03 : x
2. Step 2: Convert to fraction form
   3,541.89/5,312.43 = 945.03/x
3. Step 3: Cross multiply
   3,541.89x = 5,312.43 × 945.03
4. Step 4: Simplify right side
   3,541.89x = 5,020,405.72
5. Step 5: Solve for x
   x = 5,020,405.72/3,541.89
6. Step 6: Final answer
   x = 1,417.44