Finding the Fourth Proportional to 1,897.96, 2,620.46 and 1,455.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.96 : 2,620.46 = 1,455.08 : x
2. Step 2: Convert to fraction form
   1,897.96/2,620.46 = 1,455.08/x
3. Step 3: Cross multiply
   1,897.96x = 2,620.46 × 1,455.08
4. Step 4: Simplify right side
   1,897.96x = 3,812,978.94
5. Step 5: Solve for x
   x = 3,812,978.94/1,897.96
6. Step 6: Final answer
   x = 2,008.99