Finding the Fourth Proportional to 1,897.83, 2,619.37 and 1,111.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.83 : 2,619.37 = 1,111.86 : x
2. Step 2: Convert to fraction form
   1,897.83/2,619.37 = 1,111.86/x
3. Step 3: Cross multiply
   1,897.83x = 2,619.37 × 1,111.86
4. Step 4: Simplify right side
   1,897.83x = 2,912,374.12
5. Step 5: Solve for x
   x = 2,912,374.12/1,897.83
6. Step 6: Final answer
   x = 1,534.58