Finding the Fourth Proportional to 2,912.10, 4,368.18 and 1,156.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,912.10 : 4,368.18 = 1,156.33 : x
2. Step 2: Convert to fraction form
   2,912.10/4,368.18 = 1,156.33/x
3. Step 3: Cross multiply
   2,912.10x = 4,368.18 × 1,156.33
4. Step 4: Simplify right side
   2,912.10x = 5,051,036.30
5. Step 5: Solve for x
   x = 5,051,036.30/2,912.10
6. Step 6: Final answer
   x = 1,734.50