Finding the Fourth Proportional to 1,308,411.98, 1,960,614.79 and 880,362.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308,411.98 : 1,960,614.79 = 880,362.31 : x
2. Step 2: Convert to fraction form
   1,308,411.98/1,960,614.79 = 880,362.31/x
3. Step 3: Cross multiply
   1,308,411.98x = 1,960,614.79 × 880,362.31
4. Step 4: Simplify right side
   1,308,411.98x = 1,726,051,358,442.12
5. Step 5: Solve for x
   x = 1,726,051,358,442.12/1,308,411.98
6. Step 6: Final answer
   x = 1,319,195.63