Finding the Fourth Proportional to 710,066.34, 979,886.57 and 387,776.52

Step by Step Solution

1. Step 1: Write the proportion equation
   710,066.34 : 979,886.57 = 387,776.52 : x
2. Step 2: Convert to fraction form
   710,066.34/979,886.57 = 387,776.52/x
3. Step 3: Cross multiply
   710,066.34x = 979,886.57 × 387,776.52
4. Step 4: Simplify right side
   710,066.34x = 379,977,002,170.45
5. Step 5: Solve for x
   x = 379,977,002,170.45/710,066.34
6. Step 6: Final answer
   x = 535,128.88