Finding the Fourth Proportional to 1,763.53, 2,431.98 and 1,055.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,763.53 : 2,431.98 = 1,055.25 : x
2. Step 2: Convert to fraction form
   1,763.53/2,431.98 = 1,055.25/x
3. Step 3: Cross multiply
   1,763.53x = 2,431.98 × 1,055.25
4. Step 4: Simplify right side
   1,763.53x = 2,566,346.90
5. Step 5: Solve for x
   x = 2,566,346.90/1,763.53
6. Step 6: Final answer
   x = 1,455.23