Finding the Fourth Proportional to 1,355.08, 2,041.86 and 1,116.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355.08 : 2,041.86 = 1,116.92 : x
2. Step 2: Convert to fraction form
   1,355.08/2,041.86 = 1,116.92/x
3. Step 3: Cross multiply
   1,355.08x = 2,041.86 × 1,116.92
4. Step 4: Simplify right side
   1,355.08x = 2,280,594.27
5. Step 5: Solve for x
   x = 2,280,594.27/1,355.08
6. Step 6: Final answer
   x = 1,683.00