Finding the Fourth Proportional to 3,109.60, 4,665.30 and 1,262.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,109.60 : 4,665.30 = 1,262.08 : x
2. Step 2: Convert to fraction form
   3,109.60/4,665.30 = 1,262.08/x
3. Step 3: Cross multiply
   3,109.60x = 4,665.30 × 1,262.08
4. Step 4: Simplify right side
   3,109.60x = 5,887,981.82
5. Step 5: Solve for x
   x = 5,887,981.82/3,109.60
6. Step 6: Final answer
   x = 1,893.49