Finding the Fourth Proportional to 2,955.25, 4,429.82 and 1,312.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,955.25 : 4,429.82 = 1,312.57 : x
2. Step 2: Convert to fraction form
   2,955.25/4,429.82 = 1,312.57/x
3. Step 3: Cross multiply
   2,955.25x = 4,429.82 × 1,312.57
4. Step 4: Simplify right side
   2,955.25x = 5,814,448.84
5. Step 5: Solve for x
   x = 5,814,448.84/2,955.25
6. Step 6: Final answer
   x = 1,967.50