Finding the Fourth Proportional to 2,607.78, 3,598.46 and 1,488.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.78 : 3,598.46 = 1,488.62 : x
2. Step 2: Convert to fraction form
   2,607.78/3,598.46 = 1,488.62/x
3. Step 3: Cross multiply
   2,607.78x = 3,598.46 × 1,488.62
4. Step 4: Simplify right side
   2,607.78x = 5,356,739.53
5. Step 5: Solve for x
   x = 5,356,739.53/2,607.78
6. Step 6: Final answer
   x = 2,054.14