Finding the Fourth Proportional to 1,432.69, 2,146.25 and 1,056.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.69 : 2,146.25 = 1,056.76 : x
2. Step 2: Convert to fraction form
   1,432.69/2,146.25 = 1,056.76/x
3. Step 3: Cross multiply
   1,432.69x = 2,146.25 × 1,056.76
4. Step 4: Simplify right side
   1,432.69x = 2,268,060.50
5. Step 5: Solve for x
   x = 2,268,060.50/1,432.69
6. Step 6: Final answer
   x = 1,583.08