Finding the Fourth Proportional to 2,887.72, 4,332.12 and 1,156.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,887.72 : 4,332.12 = 1,156.48 : x
2. Step 2: Convert to fraction form
   2,887.72/4,332.12 = 1,156.48/x
3. Step 3: Cross multiply
   2,887.72x = 4,332.12 × 1,156.48
4. Step 4: Simplify right side
   2,887.72x = 5,010,010.14
5. Step 5: Solve for x
   x = 5,010,010.14/2,887.72
6. Step 6: Final answer
   x = 1,734.94