Finding the Fourth Proportional to 1,864.55, 2,572.25 and 1,266.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,864.55 : 2,572.25 = 1,266.32 : x
2. Step 2: Convert to fraction form
   1,864.55/2,572.25 = 1,266.32/x
3. Step 3: Cross multiply
   1,864.55x = 2,572.25 × 1,266.32
4. Step 4: Simplify right side
   1,864.55x = 3,257,272.43
5. Step 5: Solve for x
   x = 3,257,272.43/1,864.55
6. Step 6: Final answer
   x = 1,746.95