Finding the Fourth Proportional to 526,908, 726,934.59 and 345,719.91

Step by Step Solution

1. Step 1: Write the proportion equation
   526,908 : 726,934.59 = 345,719.91 : x
2. Step 2: Convert to fraction form
   526,908/726,934.59 = 345,719.91/x
3. Step 3: Cross multiply
   526,908x = 726,934.59 × 345,719.91
4. Step 4: Simplify right side
   526,908x = 251,315,761,030.69
5. Step 5: Solve for x
   x = 251,315,761,030.69/526,908
6. Step 6: Final answer
   x = 476,963.27