Finding the Fourth Proportional to 1,485.06, 2,051.52 and 1,189.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.06 : 2,051.52 = 1,189.94 : x
2. Step 2: Convert to fraction form
   1,485.06/2,051.52 = 1,189.94/x
3. Step 3: Cross multiply
   1,485.06x = 2,051.52 × 1,189.94
4. Step 4: Simplify right side
   1,485.06x = 2,441,185.71
5. Step 5: Solve for x
   x = 2,441,185.71/1,485.06
6. Step 6: Final answer
   x = 1,643.83