Finding the Fourth Proportional to 1,870.73, 2,805.45 and 1,564.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.73 : 2,805.45 = 1,564.55 : x
2. Step 2: Convert to fraction form
   1,870.73/2,805.45 = 1,564.55/x
3. Step 3: Cross multiply
   1,870.73x = 2,805.45 × 1,564.55
4. Step 4: Simplify right side
   1,870.73x = 4,389,252.77
5. Step 5: Solve for x
   x = 4,389,252.77/1,870.73
6. Step 6: Final answer
   x = 2,346.28