Finding the Fourth Proportional to 2,607.52, 3,598.43 and 1,428.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.52 : 3,598.43 = 1,428.51 : x
2. Step 2: Convert to fraction form
   2,607.52/3,598.43 = 1,428.51/x
3. Step 3: Cross multiply
   2,607.52x = 3,598.43 × 1,428.51
4. Step 4: Simplify right side
   2,607.52x = 5,140,386.10
5. Step 5: Solve for x
   x = 5,140,386.10/2,607.52
6. Step 6: Final answer
   x = 1,971.37