Finding the Fourth Proportional to 1,817.34, 2,507.86 and 1,020.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,817.34 : 2,507.86 = 1,020.69 : x
2. Step 2: Convert to fraction form
   1,817.34/2,507.86 = 1,020.69/x
3. Step 3: Cross multiply
   1,817.34x = 2,507.86 × 1,020.69
4. Step 4: Simplify right side
   1,817.34x = 2,559,747.62
5. Step 5: Solve for x
   x = 2,559,747.62/1,817.34
6. Step 6: Final answer
   x = 1,408.51