Finding the Fourth Proportional to 1,272,746.60, 1,756,426.83 and 776,059.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,272,746.60 : 1,756,426.83 = 776,059.61 : x
2. Step 2: Convert to fraction form
   1,272,746.60/1,756,426.83 = 776,059.61/x
3. Step 3: Cross multiply
   1,272,746.60x = 1,756,426.83 × 776,059.61
4. Step 4: Simplify right side
   1,272,746.60x = 1,363,091,920,683.34
5. Step 5: Solve for x
   x = 1,363,091,920,683.34/1,272,746.60
6. Step 6: Final answer
   x = 1,070,984.53