Finding the Fourth Proportional to 1,507,516.27, 2,079,439.23 and 991,329.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507,516.27 : 2,079,439.23 = 991,329.46 : x
2. Step 2: Convert to fraction form
   1,507,516.27/2,079,439.23 = 991,329.46/x
3. Step 3: Cross multiply
   1,507,516.27x = 2,079,439.23 × 991,329.46
4. Step 4: Simplify right side
   1,507,516.27x = 2,061,409,368,978.72
5. Step 5: Solve for x
   x = 2,061,409,368,978.72/1,507,516.27
6. Step 6: Final answer
   x = 1,367,420.98