Finding the Fourth Proportional to 1,502.79, 2,255.33 and 1,211.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,502.79 : 2,255.33 = 1,211.00 : x
2. Step 2: Convert to fraction form
   1,502.79/2,255.33 = 1,211.00/x
3. Step 3: Cross multiply
   1,502.79x = 2,255.33 × 1,211.00
4. Step 4: Simplify right side
   1,502.79x = 2,731,187.30
5. Step 5: Solve for x
   x = 2,731,187.30/1,502.79
6. Step 6: Final answer
   x = 1,817.41