Finding the Fourth Proportional to 1,858.46, 2,564.60 and 1,111.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.46 : 2,564.60 = 1,111.98 : x
2. Step 2: Convert to fraction form
   1,858.46/2,564.60 = 1,111.98/x
3. Step 3: Cross multiply
   1,858.46x = 2,564.60 × 1,111.98
4. Step 4: Simplify right side
   1,858.46x = 2,851,783.91
5. Step 5: Solve for x
   x = 2,851,783.91/1,858.46
6. Step 6: Final answer
   x = 1,534.49