Finding the Fourth Proportional to 2,892.48, 4,338.97 and 1,312.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,892.48 : 4,338.97 = 1,312.17 : x
2. Step 2: Convert to fraction form
   2,892.48/4,338.97 = 1,312.17/x
3. Step 3: Cross multiply
   2,892.48x = 4,338.97 × 1,312.17
4. Step 4: Simplify right side
   2,892.48x = 5,693,483.32
5. Step 5: Solve for x
   x = 5,693,483.32/2,892.48
6. Step 6: Final answer
   x = 1,968.37