Finding the Fourth Proportional to 2,385.06, 3,577.59 and 1,230

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.06 : 3,577.59 = 1,230 : x
2. Step 2: Convert to fraction form
   2,385.06/3,577.59 = 1,230/x
3. Step 3: Cross multiply
   2,385.06x = 3,577.59 × 1,230
4. Step 4: Simplify right side
   2,385.06x = 4,400,435.70
5. Step 5: Solve for x
   x = 4,400,435.70/2,385.06
6. Step 6: Final answer
   x = 1,845.00