Finding the Fourth Proportional to 2,607.56, 3,598.47 and 1,428.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.56 : 3,598.47 = 1,428.69 : x
2. Step 2: Convert to fraction form
   2,607.56/3,598.47 = 1,428.69/x
3. Step 3: Cross multiply
   2,607.56x = 3,598.47 × 1,428.69
4. Step 4: Simplify right side
   2,607.56x = 5,141,098.10
5. Step 5: Solve for x
   x = 5,141,098.10/2,607.56
6. Step 6: Final answer
   x = 1,971.62