Finding the Fourth Proportional to 1,816.35, 2,506.61 and 1,030.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,816.35 : 2,506.61 = 1,030.45 : x
2. Step 2: Convert to fraction form
   1,816.35/2,506.61 = 1,030.45/x
3. Step 3: Cross multiply
   1,816.35x = 2,506.61 × 1,030.45
4. Step 4: Simplify right side
   1,816.35x = 2,582,936.27
5. Step 5: Solve for x
   x = 2,582,936.27/1,816.35
6. Step 6: Final answer
   x = 1,422.05