Finding the Fourth Proportional to 2,051.73, 3,075.30 and 817.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,051.73 : 3,075.30 = 817.43 : x
2. Step 2: Convert to fraction form
   2,051.73/3,075.30 = 817.43/x
3. Step 3: Cross multiply
   2,051.73x = 3,075.30 × 817.43
4. Step 4: Simplify right side
   2,051.73x = 2,513,827.10
5. Step 5: Solve for x
   x = 2,513,827.10/2,051.73
6. Step 6: Final answer
   x = 1,225.22