Finding the Fourth Proportional to 911,300.64, 1,367,444.52 and 379,188.96

Step by Step Solution

1. Step 1: Write the proportion equation
   911,300.64 : 1,367,444.52 = 379,188.96 : x
2. Step 2: Convert to fraction form
   911,300.64/1,367,444.52 = 379,188.96/x
3. Step 3: Cross multiply
   911,300.64x = 1,367,444.52 × 379,188.96
4. Step 4: Simplify right side
   911,300.64x = 518,519,865,396.50
5. Step 5: Solve for x
   x = 518,519,865,396.50/911,300.64
6. Step 6: Final answer
   x = 568,988.81