Finding the Fourth Proportional to 1,423,300.71, 1,964,152.68 and 778,723.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423,300.71 : 1,964,152.68 = 778,723.50 : x
2. Step 2: Convert to fraction form
   1,423,300.71/1,964,152.68 = 778,723.50/x
3. Step 3: Cross multiply
   1,423,300.71x = 1,964,152.68 × 778,723.50
4. Step 4: Simplify right side
   1,423,300.71x = 1,529,531,849,503.98
5. Step 5: Solve for x
   x = 1,529,531,849,503.98/1,423,300.71
6. Step 6: Final answer
   x = 1,074,637.17