Finding the Fourth Proportional to 2,523.33, 3,482.17 and 1,389.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,523.33 : 3,482.17 = 1,389.07 : x
2. Step 2: Convert to fraction form
   2,523.33/3,482.17 = 1,389.07/x
3. Step 3: Cross multiply
   2,523.33x = 3,482.17 × 1,389.07
4. Step 4: Simplify right side
   2,523.33x = 4,836,977.88
5. Step 5: Solve for x
   x = 4,836,977.88/2,523.33
6. Step 6: Final answer
   x = 1,916.90