Finding the Fourth Proportional to 650,840.38, 976,950.69 and 576,443.50

Step by Step Solution

1. Step 1: Write the proportion equation
   650,840.38 : 976,950.69 = 576,443.50 : x
2. Step 2: Convert to fraction form
   650,840.38/976,950.69 = 576,443.50/x
3. Step 3: Cross multiply
   650,840.38x = 976,950.69 × 576,443.50
4. Step 4: Simplify right side
   650,840.38x = 563,156,875,071.02
5. Step 5: Solve for x
   x = 563,156,875,071.02/650,840.38
6. Step 6: Final answer
   x = 865,276.48