Finding the Fourth Proportional to 1,540,038.76, 2,309,881.59 and 402,910.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,540,038.76 : 2,309,881.59 = 402,910.71 : x
2. Step 2: Convert to fraction form
   1,540,038.76/2,309,881.59 = 402,910.71/x
3. Step 3: Cross multiply
   1,540,038.76x = 2,309,881.59 × 402,910.71
4. Step 4: Simplify right side
   1,540,038.76x = 930,676,022,780.77
5. Step 5: Solve for x
   x = 930,676,022,780.77/1,540,038.76
6. Step 6: Final answer
   x = 604,319.87