Finding the Fourth Proportional to 1,207.63, 1,810.23 and 1,061.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,207.63 : 1,810.23 = 1,061.83 : x
2. Step 2: Convert to fraction form
   1,207.63/1,810.23 = 1,061.83/x
3. Step 3: Cross multiply
   1,207.63x = 1,810.23 × 1,061.83
4. Step 4: Simplify right side
   1,207.63x = 1,922,156.52
5. Step 5: Solve for x
   x = 1,922,156.52/1,207.63
6. Step 6: Final answer
   x = 1,591.68