Finding the Fourth Proportional to 1,890.54, 2,607.39 and 1,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,890.54 : 2,607.39 = 1,449.50 : x
2. Step 2: Convert to fraction form
   1,890.54/2,607.39 = 1,449.50/x
3. Step 3: Cross multiply
   1,890.54x = 2,607.39 × 1,449.50
4. Step 4: Simplify right side
   1,890.54x = 3,779,398.77
5. Step 5: Solve for x
   x = 3,779,398.77/1,890.54
6. Step 6: Final answer
   x = 1,999.11