Finding the Fourth Proportional to 1,488.52, 2,056.72 and 1,435.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.52 : 2,056.72 = 1,435.96 : x
2. Step 2: Convert to fraction form
   1,488.52/2,056.72 = 1,435.96/x
3. Step 3: Cross multiply
   1,488.52x = 2,056.72 × 1,435.96
4. Step 4: Simplify right side
   1,488.52x = 2,953,367.65
5. Step 5: Solve for x
   x = 2,953,367.65/1,488.52
6. Step 6: Final answer
   x = 1,984.10