Finding the Fourth Proportional to 1,316,142.52, 1,972,905.94 and 915,942.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,316,142.52 : 1,972,905.94 = 915,942.54 : x
2. Step 2: Convert to fraction form
   1,316,142.52/1,972,905.94 = 915,942.54/x
3. Step 3: Cross multiply
   1,316,142.52x = 1,972,905.94 × 915,942.54
4. Step 4: Simplify right side
   1,316,142.52x = 1,807,068,477,864.69
5. Step 5: Solve for x
   x = 1,807,068,477,864.69/1,316,142.52
6. Step 6: Final answer
   x = 1,373,003.65