Finding the Fourth Proportional to 1,845.78, 2,547.18 and 1,256.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,845.78 : 2,547.18 = 1,256.32 : x
2. Step 2: Convert to fraction form
   1,845.78/2,547.18 = 1,256.32/x
3. Step 3: Cross multiply
   1,845.78x = 2,547.18 × 1,256.32
4. Step 4: Simplify right side
   1,845.78x = 3,200,060.44
5. Step 5: Solve for x
   x = 3,200,060.44/1,845.78
6. Step 6: Final answer
   x = 1,733.72