Finding the Fourth Proportional to 2,607.48, 3,598.22 and 1,428.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.48 : 3,598.22 = 1,428.53 : x
2. Step 2: Convert to fraction form
   2,607.48/3,598.22 = 1,428.53/x
3. Step 3: Cross multiply
   2,607.48x = 3,598.22 × 1,428.53
4. Step 4: Simplify right side
   2,607.48x = 5,140,140.08
5. Step 5: Solve for x
   x = 5,140,140.08/2,607.48
6. Step 6: Final answer
   x = 1,971.31