Finding the Fourth Proportional to 1,837,144.95, 2,755,779.59 and 639,077.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,837,144.95 : 2,755,779.59 = 639,077.61 : x
2. Step 2: Convert to fraction form
   1,837,144.95/2,755,779.59 = 639,077.61/x
3. Step 3: Cross multiply
   1,837,144.95x = 2,755,779.59 × 639,077.61
4. Step 4: Simplify right side
   1,837,144.95x = 1,761,157,034,063.98
5. Step 5: Solve for x
   x = 1,761,157,034,063.98/1,837,144.95
6. Step 6: Final answer
   x = 958,638.04