Finding the Fourth Proportional to 1,477.12, 2,210.86 and 1,087.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,477.12 : 2,210.86 = 1,087.03 : x
2. Step 2: Convert to fraction form
   1,477.12/2,210.86 = 1,087.03/x
3. Step 3: Cross multiply
   1,477.12x = 2,210.86 × 1,087.03
4. Step 4: Simplify right side
   1,477.12x = 2,403,271.15
5. Step 5: Solve for x
   x = 2,403,271.15/1,477.12
6. Step 6: Final answer
   x = 1,627.00