Finding the Fourth Proportional to 3,640.63, 5,461.15 and 1,043.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640.63 : 5,461.15 = 1,043.50 : x
2. Step 2: Convert to fraction form
   3,640.63/5,461.15 = 1,043.50/x
3. Step 3: Cross multiply
   3,640.63x = 5,461.15 × 1,043.50
4. Step 4: Simplify right side
   3,640.63x = 5,698,710.03
5. Step 5: Solve for x
   x = 5,698,710.03/3,640.63
6. Step 6: Final answer
   x = 1,565.31