Finding the Fourth Proportional to 1,564.82, 2,345.86 and 1,477.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,564.82 : 2,345.86 = 1,477.79 : x
2. Step 2: Convert to fraction form
   1,564.82/2,345.86 = 1,477.79/x
3. Step 3: Cross multiply
   1,564.82x = 2,345.86 × 1,477.79
4. Step 4: Simplify right side
   1,564.82x = 3,466,690.62
5. Step 5: Solve for x
   x = 3,466,690.62/1,564.82
6. Step 6: Final answer
   x = 2,215.40