Finding the Fourth Proportional to 1,683,665.72, 2,323,509.60 and 919,768.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,683,665.72 : 2,323,509.60 = 919,768.52 : x
2. Step 2: Convert to fraction form
   1,683,665.72/2,323,509.60 = 919,768.52/x
3. Step 3: Cross multiply
   1,683,665.72x = 2,323,509.60 × 919,768.52
4. Step 4: Simplify right side
   1,683,665.72x = 2,137,090,985,997.79
5. Step 5: Solve for x
   x = 2,137,090,985,997.79/1,683,665.72
6. Step 6: Final answer
   x = 1,269,308.37