Finding the Fourth Proportional to 2,607.71, 3,598.71 and 1,428.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.71 : 3,598.71 = 1,428.83 : x
2. Step 2: Convert to fraction form
   2,607.71/3,598.71 = 1,428.83/x
3. Step 3: Cross multiply
   2,607.71x = 3,598.71 × 1,428.83
4. Step 4: Simplify right side
   2,607.71x = 5,141,944.81
5. Step 5: Solve for x
   x = 5,141,944.81/2,607.71
6. Step 6: Final answer
   x = 1,971.82