Finding the Fourth Proportional to 1,897.47, 2,618.73 and 1,111.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.47 : 2,618.73 = 1,111.50 : x
2. Step 2: Convert to fraction form
   1,897.47/2,618.73 = 1,111.50/x
3. Step 3: Cross multiply
   1,897.47x = 2,618.73 × 1,111.50
4. Step 4: Simplify right side
   1,897.47x = 2,910,718.40
5. Step 5: Solve for x
   x = 2,910,718.40/1,897.47
6. Step 6: Final answer
   x = 1,534.00