Finding the Fourth Proportional to 1,925.72, 2,890.62 and 1,564.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,925.72 : 2,890.62 = 1,564.86 : x
2. Step 2: Convert to fraction form
   1,925.72/2,890.62 = 1,564.86/x
3. Step 3: Cross multiply
   1,925.72x = 2,890.62 × 1,564.86
4. Step 4: Simplify right side
   1,925.72x = 4,523,415.61
5. Step 5: Solve for x
   x = 4,523,415.61/1,925.72
6. Step 6: Final answer
   x = 2,348.95