Finding the Fourth Proportional to 1,438.02, 1,983.57 and 1,084.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,438.02 : 1,983.57 = 1,084.50 : x
2. Step 2: Convert to fraction form
   1,438.02/1,983.57 = 1,084.50/x
3. Step 3: Cross multiply
   1,438.02x = 1,983.57 × 1,084.50
4. Step 4: Simplify right side
   1,438.02x = 2,151,181.67
5. Step 5: Solve for x
   x = 2,151,181.67/1,438.02
6. Step 6: Final answer
   x = 1,495.93