Finding the Fourth Proportional to 897,046.56, 1,345,606.56 and 417,720.96

Step by Step Solution

1. Step 1: Write the proportion equation
   897,046.56 : 1,345,606.56 = 417,720.96 : x
2. Step 2: Convert to fraction form
   897,046.56/1,345,606.56 = 417,720.96/x
3. Step 3: Cross multiply
   897,046.56x = 1,345,606.56 × 417,720.96
4. Step 4: Simplify right side
   897,046.56x = 562,088,064,025.50
5. Step 5: Solve for x
   x = 562,088,064,025.50/897,046.56
6. Step 6: Final answer
   x = 626,598.54