Finding the Fourth Proportional to 1,109,957.82, 1,663,940.16 and 921,628.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,109,957.82 : 1,663,940.16 = 921,628.50 : x
2. Step 2: Convert to fraction form
   1,109,957.82/1,663,940.16 = 921,628.50/x
3. Step 3: Cross multiply
   1,109,957.82x = 1,663,940.16 × 921,628.50
4. Step 4: Simplify right side
   1,109,957.82x = 1,533,534,673,750.56
5. Step 5: Solve for x
   x = 1,533,534,673,750.56/1,109,957.82
6. Step 6: Final answer
   x = 1,381,615.27