Finding the Fourth Proportional to 726,848.28, 1,090,495.71 and 372,111.30

Step by Step Solution

1. Step 1: Write the proportion equation
   726,848.28 : 1,090,495.71 = 372,111.30 : x
2. Step 2: Convert to fraction form
   726,848.28/1,090,495.71 = 372,111.30/x
3. Step 3: Cross multiply
   726,848.28x = 1,090,495.71 × 372,111.30
4. Step 4: Simplify right side
   726,848.28x = 405,785,776,292.52
5. Step 5: Solve for x
   x = 405,785,776,292.52/726,848.28
6. Step 6: Final answer
   x = 558,281.26