Finding the Fourth Proportional to 1,583.32, 2,185.16 and 1,111.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,583.32 : 2,185.16 = 1,111.08 : x
2. Step 2: Convert to fraction form
   1,583.32/2,185.16 = 1,111.08/x
3. Step 3: Cross multiply
   1,583.32x = 2,185.16 × 1,111.08
4. Step 4: Simplify right side
   1,583.32x = 2,427,887.57
5. Step 5: Solve for x
   x = 2,427,887.57/1,583.32
6. Step 6: Final answer
   x = 1,533.42