Finding the Fourth Proportional to 1,429.86, 2,145.48 and 736.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429.86 : 2,145.48 = 736.56 : x
2. Step 2: Convert to fraction form
   1,429.86/2,145.48 = 736.56/x
3. Step 3: Cross multiply
   1,429.86x = 2,145.48 × 736.56
4. Step 4: Simplify right side
   1,429.86x = 1,580,274.75
5. Step 5: Solve for x
   x = 1,580,274.75/1,429.86
6. Step 6: Final answer
   x = 1,105.20