Finding the Fourth Proportional to 1,821.39, 2,513.31 and 1,035.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,821.39 : 2,513.31 = 1,035.29 : x
2. Step 2: Convert to fraction form
   1,821.39/2,513.31 = 1,035.29/x
3. Step 3: Cross multiply
   1,821.39x = 2,513.31 × 1,035.29
4. Step 4: Simplify right side
   1,821.39x = 2,602,004.71
5. Step 5: Solve for x
   x = 2,602,004.71/1,821.39
6. Step 6: Final answer
   x = 1,428.58