Finding the Fourth Proportional to 1,087,970.91, 1,501,016.20 and 622,484.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,087,970.91 : 1,501,016.20 = 622,484.81 : x
2. Step 2: Convert to fraction form
   1,087,970.91/1,501,016.20 = 622,484.81/x
3. Step 3: Cross multiply
   1,087,970.91x = 1,501,016.20 × 622,484.81
4. Step 4: Simplify right side
   1,087,970.91x = 934,359,786,260.25
5. Step 5: Solve for x
   x = 934,359,786,260.25/1,087,970.91
6. Step 6: Final answer
   x = 858,809.53