Finding the Fourth Proportional to 1,407,721.33, 2,111,540.98 and 342,748.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,407,721.33 : 2,111,540.98 = 342,748.01 : x
2. Step 2: Convert to fraction form
   1,407,721.33/2,111,540.98 = 342,748.01/x
3. Step 3: Cross multiply
   1,407,721.33x = 2,111,540.98 × 342,748.01
4. Step 4: Simplify right side
   1,407,721.33x = 723,726,463,079.61
5. Step 5: Solve for x
   x = 723,726,463,079.61/1,407,721.33
6. Step 6: Final answer
   x = 514,112.03