Finding the Fourth Proportional to 722,370.72, 994,590.72 and 636,276

Step by Step Solution

1. Step 1: Write the proportion equation
   722,370.72 : 994,590.72 = 636,276 : x
2. Step 2: Convert to fraction form
   722,370.72/994,590.72 = 636,276/x
3. Step 3: Cross multiply
   722,370.72x = 994,590.72 × 636,276
4. Step 4: Simplify right side
   722,370.72x = 632,834,204,958.72
5. Step 5: Solve for x
   x = 632,834,204,958.72/722,370.72
6. Step 6: Final answer
   x = 876,051.85