Finding the Fourth Proportional to 2,886.63, 4,330.68 and 1,155.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.63 : 4,330.68 = 1,155.25 : x
2. Step 2: Convert to fraction form
   2,886.63/4,330.68 = 1,155.25/x
3. Step 3: Cross multiply
   2,886.63x = 4,330.68 × 1,155.25
4. Step 4: Simplify right side
   2,886.63x = 5,003,018.07
5. Step 5: Solve for x
   x = 5,003,018.07/2,886.63
6. Step 6: Final answer
   x = 1,733.17