Finding the Fourth Proportional to 1,535.80, 2,300.98 and 1,485.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,535.80 : 2,300.98 = 1,485.04 : x
2. Step 2: Convert to fraction form
   1,535.80/2,300.98 = 1,485.04/x
3. Step 3: Cross multiply
   1,535.80x = 2,300.98 × 1,485.04
4. Step 4: Simplify right side
   1,535.80x = 3,417,047.34
5. Step 5: Solve for x
   x = 3,417,047.34/1,535.80
6. Step 6: Final answer
   x = 2,224.93