Finding the Fourth Proportional to 1,858.34, 2,564.24 and 1,061.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,858.34 : 2,564.24 = 1,061.76 : x
2. Step 2: Convert to fraction form
   1,858.34/2,564.24 = 1,061.76/x
3. Step 3: Cross multiply
   1,858.34x = 2,564.24 × 1,061.76
4. Step 4: Simplify right side
   1,858.34x = 2,722,607.46
5. Step 5: Solve for x
   x = 2,722,607.46/1,858.34
6. Step 6: Final answer
   x = 1,465.07