Finding the Fourth Proportional to 1,154,244.72, 1,592,865.72 and 644,968.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,154,244.72 : 1,592,865.72 = 644,968.56 : x
2. Step 2: Convert to fraction form
   1,154,244.72/1,592,865.72 = 644,968.56/x
3. Step 3: Cross multiply
   1,154,244.72x = 1,592,865.72 × 644,968.56
4. Step 4: Simplify right side
   1,154,244.72x = 1,027,348,309,701.76
5. Step 5: Solve for x
   x = 1,027,348,309,701.76/1,154,244.72
6. Step 6: Final answer
   x = 890,061.09