Finding the Fourth Proportional to 1,061.80, 1,592.61 and 469.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.80 : 1,592.61 = 469.09 : x
2. Step 2: Convert to fraction form
   1,061.80/1,592.61 = 469.09/x
3. Step 3: Cross multiply
   1,061.80x = 1,592.61 × 469.09
4. Step 4: Simplify right side
   1,061.80x = 747,077.42
5. Step 5: Solve for x
   x = 747,077.42/1,061.80
6. Step 6: Final answer
   x = 703.60