Finding the Fourth Proportional to 1,858.52, 2,564.52 and 1,072.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.52 : 2,564.52 = 1,072.46 : x
2. Step 2: Convert to fraction form
   1,858.52/2,564.52 = 1,072.46/x
3. Step 3: Cross multiply
   1,858.52x = 2,564.52 × 1,072.46
4. Step 4: Simplify right side
   1,858.52x = 2,750,345.12
5. Step 5: Solve for x
   x = 2,750,345.12/1,858.52
6. Step 6: Final answer
   x = 1,479.86