Finding the Fourth Proportional to 2,887.56, 4,331.94 and 1,156.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,887.56 : 4,331.94 = 1,156.17 : x
2. Step 2: Convert to fraction form
   2,887.56/4,331.94 = 1,156.17/x
3. Step 3: Cross multiply
   2,887.56x = 4,331.94 × 1,156.17
4. Step 4: Simplify right side
   2,887.56x = 5,008,459.07
5. Step 5: Solve for x
   x = 5,008,459.07/2,887.56
6. Step 6: Final answer
   x = 1,734.50