Finding the Fourth Proportional to 1,765.02, 2,435.56 and 1,056.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,765.02 : 2,435.56 = 1,056.72 : x
2. Step 2: Convert to fraction form
   1,765.02/2,435.56 = 1,056.72/x
3. Step 3: Cross multiply
   1,765.02x = 2,435.56 × 1,056.72
4. Step 4: Simplify right side
   1,765.02x = 2,573,704.96
5. Step 5: Solve for x
   x = 2,573,704.96/1,765.02
6. Step 6: Final answer
   x = 1,458.17