Finding the Fourth Proportional to 1,845.72, 2,547.54 and 1,138.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,845.72 : 2,547.54 = 1,138.59 : x
2. Step 2: Convert to fraction form
   1,845.72/2,547.54 = 1,138.59/x
3. Step 3: Cross multiply
   1,845.72x = 2,547.54 × 1,138.59
4. Step 4: Simplify right side
   1,845.72x = 2,900,603.57
5. Step 5: Solve for x
   x = 2,900,603.57/1,845.72
6. Step 6: Final answer
   x = 1,571.53